Abstract: CERN-LHC. The relative modification of the prompt psi(2S) and J/psi yields from pp to PbPb collisions, at the center of mass energy of 5.02 TeV per nucleon pair, is presented. The analysis is based on pp and PbPb data samples collected by the CMS experiment at the LHC in 2015, corresponding to integrated luminosities of 28.0 inverse picobarns and 464 inverse microbarns, respectively. The double ratio of measured yields of prompt charmonia reconstructed through their decays into muon pairs, (N[psi(2S)]/N[J/psi])[PbPb]/ (N[psi(2S)]/N[J/psi])[pp], is determined as a function of PbPb collision centrality and charmonium transverse momentum pt, in two kinematic intervals: abs(y) < 1.6 covering 6.5 < pt < 30GeV/c and 1.6 < abs(y) < 2.4 covering 3

Relative modification of prompt psi(2S) and J/psi yields from pp to PbPb collisions at sqrt(s[NN]) = 5.02 TeV;CMS Collaboration;2017;HEPData


Abstract: No data abstract available.

Measurement of B+/- meson differential production cross sections in pp and PbPb collisions at sqrt(s[NN]) = 5.02 TeV;CMS Collaboration;2017;HEPData


Abstract: CERN-LHC. Measurement of charge-dependent azimuthal correlations in pPb and PbPb collisions and its implication for the search for the chiral magnetic effect.

Observation of charge-dependent azimuthal correlations in pPb collisions and its implication for the search for the chiral magnetic effect;CMS Collaboration;2017;HEPData


Abstract: CERN-LHC. Measurements of strange particle production in pp, pPb, and PbPb collisions, to study the radial flow effect in small systems comparing to large systems.

Multiplicity and rapidity dependence of strange hadron production in pp, pPb, and PbPb collisions at the LHC;CMS Collaboration;2017;HEPData


Abstract: CERN-LHC. Constraints on the chiral magnetic effect using charge-dependent azimuthal correlations in pPb and PbPb collisions at the LHC.

Constraints on the chiral magnetic effect using charge-dependent azimuthal correlations in pPb and PbPb collisions at the LHC;CMS Collaboration;2018;HEPData


Abstract:
CERN-LHC. Decomposing transverse momentum balance contributions for quenched jets in PbPb collisions at 2.76 TeV with CMS

Interactions between jets and the quark-gluon plasma produced in heavy ion collisions are studied via the angular distributions of summed charged-particle transverse momenta (pT) with respect to both the leading and subleading jet axes in high-pT dijet events. The contributions of charged particles in different momentum ranges to the overall event pT balance are decomposed into short-range jet peaks and a long-range azimuthal asymmetry in charged-particle pT. The results for PbPb collisions are compared to those in pp collisions using data collected in 2011 and 2013, at collision energy 2.76 TeV with integrated luminosities of 166 inverse microbarns and 5.3 inverse picobarns, respectively, by the CMS experiment at the LHC. Measurements are presented as functions of PbPb collision centrality, charged-particle pT, relative azimuth, and radial distance from the jet axis for balanced and unbalanced dijets.

Dijet events are characterized by asymmetry parameter Aj = (pT1 - pT2)/(pT1 + pT2), where pT1 = transverse momentum of the leading (highest-pT) jet and pT2 = transverse momentum of the subleading (second-highest-pT) jet. The sample is divided into two asymmetry classes--more balanced dijets for which Aj < 0.22 (52% of the PbPb sample and 67% of the pp sample), and more unbalanced dijets for which Aj > 0.22.

Decomposing transverse momentum balance contributions for quenched jets in PbPb collisions at sqrt(s[NN]) = 2.76 TeV;CMS Collaboration;2017;HEPData


Abstract: The production cross section of inclusive isolated photons has been measured by the ALICE experiment at the CERN LHC in pp collisions at centre-of-momentum energy of $\sqrt{s}=13~\mathrm{TeV}$ collected during the LHC Run 2 data-taking period. The measurement is performed by combining the measurements of the electromagnetic calorimeter EMCal and the central tracking detectors ITS and TPC, covering a pseudorapidity range of $|\eta^{\gamma}|<0.67$ and a transverse momentum range of $7

Measurement of the inclusive isolated-photon production cross section in pp collisions at $\sqrt{s}$ = 13 TeV;ALICE Collaboration;2024;HEPData


Abstract: The first measurement of the impact-parameter dependent angular anisotropy in the decay of coherently photoproduced $\rho^0$ mesons is presented. The $\rho^0$ mesons are reconstructed through their decay into a pion pair. The measured anisotropy corresponds to the amplitude of the $\cos(2\phi)$ modulation, where $\phi$ is the angle between the two vectors formed by the sum and the difference of the transverse momenta of the pions, respectively. The measurement was performed by the ALICE Collaboration at the LHC using data from ultraperipheral Pb--Pb collisions at a center-of-mass energy of $\sqrt{s_{\mathrm{NN}}} = 5.02$ TeV per nucleon pair. Different impact-parameter regions are selected by classifying the events in nuclear-breakup classes. The measured anisotropy corresponds to the amplitude of the $\cos(2\phi)$ modulation, which is found to increase by about one order of magnitude from small to large impact parameters. Theoretical calculations, which describe the measurement, explain the $\cos(2\phi)$ anisotropy as the result of a quantum interference effect at the femtometer scale that arises from the ambiguity as to which of the nuclei is the source of the photon in the interaction.

Measurement of the impact-parameter dependent azimuthal anisotropy in coherent $\rho^0$ photoproduction in Pb$-$Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV;ALICE Collaboration;2024;HEPData


Abstract: Yields of h--$\phi$ and h--h pairs were measured in p--Pb collisions at center-of-mass energy per nucleon pair $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV in the pseudorapidity region $|\eta|<0.8$, collected with the ALICE detector at the LHC. The $\phi$(1020) mesons were reconstructed from their KK decay channel (B.R. = 0.491) and correlated with a high momentum ($4.0 < p_{\mathrm{T}} < 8.0 \mathrm{~GeV}/c$) trigger hadron acting as a jet proxy. These angular correlations were separated into a near-side jet region, an away-side jet region, and an underlying event (UE), allowing for a comparison between jet and UE production. Di-hadron correlations were also measured to compare against. The correlations were performed in a lower ($1.5 < p_{\mathrm{T}} < 2.5 \mathrm{~GeV}/c$) and a higher ($2.5 < p_{\mathrm{T}} < 4.0 \mathrm{~GeV}/c$) associated momentum range. Jet yields for h--$\phi$ pairs in the lower associated momentum range show a hint of an increase with increasing event multiplicity. To further study $\phi$ production, the ratio of (h--$\phi$)/(h--h) pairs was measured separately in the near-side jet, away-side jet, and UE regions. This ratio shows a clear ordering for all multiplicities and both assocaited momentum ranges, with the UE ratio significantly higher than the ratio in the jets. It is also seen that the ratio in the jets at lower associated momentum shows hints of an increase with multiplicity, which is not seen in the higher associated momemtum measurement. The UE ratio shows no depdendence on charged particle multiplicity, and invites further study to search for an onset of strangeness enhancement at lower multiplicities.

Investigating strangeness enhancement in jet and medium via $\phi$(1020) production in p$-$Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV;ALICE Collaboration;2024;HEPData


Abstract: Multiplicity dependence of the ridge yield in low-multiplicity proton-proton collisions.

Emergence of long-range angular correlations in low-multiplicity proton-proton collisions;ALICE Collaboration;2024;HEPData


Abstract: CERN-LHC. ALICE. The transverse momentum ($p_\mathrm{T}$) differential production cross section of the promptly produced charm-strange baryon $\Xi_\mathrm{c}^0$ (and its charge conjugate $\overline{\Xi_\mathrm{c}^0}$) is measured at midrapidity via its hadronic decay into ${\pi^{+}}\Xi^{-}$ in p$-$Pb collisions at a centre-of-mass energy per nucleon$-$nucleon collision $\sqrt{s_\mathrm{NN}}= 5.02$ TeV with the ALICE detector at the LHC. The $\Xi_\mathrm{c}^0$ nuclear modification factor ($R_\mathrm{pPb}$), calculated from the cross sections in pp and p$-$Pb collisions, is presented and compared with the $R_\mathrm{pPb}$ of $\mathrm{\Lambda_c^+}$ baryons. The ratios between the $p_\mathrm{T}$-differential production cross section of $\Xi_\mathrm{c}^0$ baryons and those of $\mathrm{D^0}$ mesons and $\mathrm{\Lambda_c^+}$ baryons are also reported and compared with results at forward and backward rapidity from the LHCb Collaboration. The measurements of the production cross section of prompt $\Xi^0_\mathrm{c}$ baryons are compared with a model based on perturbative QCD calculations of charm-quark production cross sections, which includes only cold nuclear matter effects in p$-$Pb collisions, and underestimates the measurement by a factor of about 50. This discrepancy is reduced when the data is compared with a model that includes string formation beyond leading-colour approximation or in which hadronisation is implemented via quark coalescence. The $p_\mathrm{T}$-integrated cross section of prompt $\Xi^0_\mathrm{c}$-baryon production at midrapidity extrapolated down to $p_\mathrm{T}$ = 0 is also reported. These measurements offer insights and constraints for theoretical calculations of the hadronisation process. Additionally, they provide inputs for the calculation of the charm production cross section in p$-$Pb collisions at midrapidity.

Measurement of the production cross section of prompt $\Xi^0_{\rm c}$ baryons in p$-$Pb collisions at $\sqrt{s_{\mathrm{NN}}}~=~5.02$ TeV;ALICE Collaboration;2024;HEPData


Abstract: The dependence of f$_{0}$(980) production on the final-state charged-particle multiplicity in p-Pb collisions at $\sqrt{s_\mathrm{NN}}$ = 5.02 TeV is reported. The production of f$_{0}$(980) is measured with the ALICE detector via the f$_{0}$(980) $\rightarrow \pi^{+}\pi^{-}$ decay channel in a midrapidity region of $-0.5 < \mathrm{y} < 0$. Particle yield ratios of f$_{0}$(980) to $\pi$ and K$^{*}$(892)$^{0}$ are found to be decreasing with increasing charged-particle multiplicity. The magnitude of the suppression of the f$_{0}$(980)/$\pi$ and f$_{0}$(980)/K$^{*}$(892)$^{0}$ yield ratios is found to be dependent on the transverse momentum $p_\mathrm{T}$, suggesting different mechanisms responsible for the measured effects. Furthermore, the nuclear modification factor $Q_\mathrm{pPb}$ of f$_{0}$(980) is measured in various multiplicity ranges. The $Q_\mathrm{pPb}$ shows a strong suppression of the f$_{0}$(980) production in the $p_\mathrm{T}$ region up to about 4 GeV/$c$ The results on the particle yield ratios and $Q_\mathrm{pPb}$ for f$_{0}$(980) may help to understand the late hadronic phase in p-Pb collisions and the nature of the internal structure of f$_{0}$(980) particle

Observation of abnormal suppression of $\mathrm{f}_{0}$(980) production in p$-$Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV;ALICE Collaboration;2024;HEPData


Abstract: No data abstract available.

Multiplicity and event-scale dependent flow and jet fragmentation in pp collisions at $\sqrt{s}$ = 13 TeV and in p$-$Pb collisions at $\sqrt{s_\mathrm{NN}}$ = 5.02 TeV;ALICE Collaboration;2024;HEPData


Abstract: The elliptic flow ($v_2$) of $\rm D^0$ mesons from beauty-hadron decays (non-prompt $\rm D^0$) was measured in midcentral (30--50\%) Pb--Pb collisions at a centre-of-mass energy per nucleon pair $\sqrt{s_{\rm NN}} = 5.02$ TeV with the ALICE detector at the LHC. The $\rm D^0$ mesons were reconstructed at midrapidity ($|y|<0.8$) from their hadronic decay $\mathrm{D^0 \to K^-\uppi^+}$, in the transverse momentum interval $2 < p_{\rm T} < 12$ GeV$/c$.

Measurement of Non-prompt $\rm D^0$-meson Elliptic Flow in Pb-Pb Collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV;ALICE Collaboration;2023;HEPData


Abstract:
The interaction between $\Lambda$ baryons and kaons/antikaons is a crucial part of the strangeness $S=0$ ($\Lambda-\mathrm{K}$) and $S=-2$ ($\Lambda$-$\mathrm{\overline{K}}$) sector of the meson-baryon interaction at low energies and in the understanding of states such as the $\Xi(1620)$, whose nature and properties are still rather unknown. Experimental data on $\Lambda$-K and $\Lambda$-$\mathrm{\overline{K}}$ systems are rather scarce, leading to large uncertainties and tension between the available theoretical predictions. Recently, measurements of two-particle correlations in small colliding systems such as p-p collisions at LHC provided a significant improvement in the knowledge of several hadron-hadron interactions, in particular when strange baryons and mesons are involved. Correlation functions of $\Lambda - $K$^+\oplus \overline{\Lambda} - $K$^-$ and $\Lambda - $K$^-\oplus \overline{\Lambda} - $K$^+$ pairs were measured in Pb-Pb collisions and provided for the first time experimental constraints on the scattering parameters of the underlying interactions. In this letter we extend the measurements to small colliding systems by presenting $\Lambda - $K$^+\oplus \overline{\Lambda} - $K$^-$ and $\Lambda - $K$^-\oplus \overline{\Lambda} - $K$^+$ correlations obtained in the high-multiplicity triggered sample in p-p collisions at $\sqrt{s}=13$ TeV recorded by ALICE. The interaction for both pairs is modeled using the Lednicky-Lyuboshits analytical formula and the corresponding scattering parameters $Ref_0$, $Imf_0$ and $d_0$ are extracted by comparing the theoretical correlation to the data. A repulsive interaction for the $\Lambda - $K$^+\oplus \overline{\Lambda} - $K$^-$ system is found, which is in agreement with previous Pb-Pb results. The non-negligible $Imf_0$ indicates a significant coupling to inelastic channels, such as $\pi$N and $\Sigma$K. The $\Lambda - $K$^+\oplus \overline{\Lambda} - $K$^-$ correlations show the presence of several structures at relative momenta $k^\ast$ above 200 MeV$/c$, compatible with the $\Omega$, $\Xi(1690)$ and $\Xi(1820)$ resonances decaying into $\Lambda-\mathrm{K}^-$ pairs. The low $k^\ast$ region in the $\Lambda - $K$^-\oplus \overline{\Lambda} - $K$^+$ also exhibits the presence of the $\Xi(1620)$ state, expected to strongly couple to the measured pair. The $\Lambda - $K$^-\oplus \overline{\Lambda} - $K$^+$ interaction is hence modeled assuming a resonant contribution, through the formation of the $\Xi(1620)$ state, and a non-resonant one, which dominates the intermediate $k^\ast$ region. The extracted non-resonant scattering parameters are compatible with the Pb-Pb measurements and the extracted pole properties of the $\Xi(1620)$ agree with the recent Belle measurement of $\Xi(1620)\rightarrow\Xi\pi$.
The presented data allow to access the $\Lambda - $K$^+\oplus \overline{\Lambda} - $K$^-$ and $\Lambda - $K$^-\oplus \overline{\Lambda} - $K$^+$ interaction with an unprecedented precision and the first experimental observation of the $\Xi(1620)$ decaying into the $\Lambda-\mathrm{K}^-$ channel.

Accessing the strong interaction between $\Lambda$ baryons and charged kaons with the femtoscopy technique at the LHC;ALICE Collaboration;2023;HEPData


Abstract: No data abstract available.

K$^{*}$(892)$^{\pm}$ resonance production in Pb$-$Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV;ALICE Collaboration;2024;HEPData


Abstract: Measurements of charged-particle production in pp, p-Pb, and Pb-Pb collisions in the toward, away, and transverse regions with the ALICE detector are discussed. These regions are defined event-by-event relative to the azimuthal direction of the charged trigger particle, which is the reconstructed particle with the largest transverse momentum ($p_\mathrm{T}^\mathrm{trig}$) in the range $8 < p_\mathrm{T}^\mathrm{trig} < 15~\mathrm{GeV}/c$. The toward and away regions contain the primary and recoil jets, respectively; both regions are accompanied by the underlying event (UE). In contrast, the transverse region perpendicular to the direction of the trigger particle is dominated by the so-called UE dynamics, and includes also contributions from initial- and final-state radiation. The relative transverse activity classifier, $R_\mathrm{T}=N_\mathrm{ch}^\mathrm{T}/\langle N_\mathrm{ch}^\mathrm{T}\rangle$, is used to group events according to their UE activity, where $N_\mathrm{ch}^\mathrm{T}$ is the charged-particle multiplicity per event in the transverse region and $\langle N_\mathrm{ch}^\mathrm{T}\rangle$ is the mean value over the whole analysed sample. The energy dependence of the $R_\mathrm{T}$ distributions in pp collisions at $\sqrt{s}=2.76, 5.02, 7$, and $13~\mathrm{TeV}$ is reported, exploring the Koba-Nielsen-Olesen (KNO) scaling properties of the multiplicity distributions. The first measurements of charged-particle $p_\mathrm{T}$ spectra as a function of $R_\mathrm{T}$ in the three azimuthal regions in pp, p-Pb, and Pb-Pb collisions at $\sqrt{s_\mathrm{NN}}=5.02~\mathrm{TeV}$ are also reported. Data are compared with predictions obtained from the event generators $\mathrm{PYTHIA}~8$ and $\mathrm{EPOS}~\mathrm{LHC}$. This set of measurements is expected to contribute to the understanding of the origin of collective-like effects in small collision systems (pp and p-Pb).

Charged-particle production as a function of the relative transverse activity classifier in pp, p$-$Pb, and Pb$-$Pb collisions at the LHC;ALICE Collaboration;2024;HEPData


Abstract: Energy dependence of coherent photonuclear production of J/psi mesons in ultra-peripheral Pb-Pb collisions at sqrt(s_NN) 5.02 TeV.

Energy dependence of coherent photonuclear production of J/$\psi$ mesons in ultra-peripheral Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$=5.02 TeV;ALICE Collaboration;2023;HEPData


Abstract: The fractions of non-prompt (i.e. originating from beauty-hadron decays) $\mathrm{D}^0$ and $\mathrm{D}^+$ mesons with respect to the inclusive yield are measured as a function of the charged-particle multiplicity in proton--proton collisions at a centre-of-mass energy of $\sqrt{s}=13~\mathrm{TeV}$ with the ALICE detector at the LHC. The results are reported in intervals of transverse momentum ($p_\mathrm{T}$) and integrated in the range $1

Measurement of the non-prompt D-meson fraction as a function of multiplicity in proton$-$proton collisions at $\sqrt{s} = 13$ TeV;ALICE Collaboration;2023;HEPData


Abstract: No data abstract available.

Measurements of inclusive J/$\psi$ production at midrapidity and forward rapidity in Pb$-$Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV;ALICE Collaboration;2024;HEPData


Abstract: The pseudorapidity dependence of elliptic ($v_{2}$), triangular ($v_{3}$), and quadrangular ($v_{4}$) flow coefficients of charged particles measured in Pb-Pb collisions at a centre-of-mass energy per nucleon pair of $\sqrt{s_{\mathrm{NN}}}=5.02\,\mathrm{TeV}$ and in Xe-Xe collisions at $\sqrt{s_{\mathrm{NN}}}=5.44\,\mathrm{TeV}$ with ALICE at the LHC are presented. The measurements are performed in the pseudorapidity range $-3.5 < \eta < 5$ for various centrality intervals using two- and multi-particle cumulants with the subevent method. The flow probability density function (p.d.f.) is studied with the ratio of flow coefficient $v_2$ calculated with four- and two-particle cumulant, and suggests that the variance of flow p.d.f. is independent of pseudorapidity. The decorrelation of the flow vector in the longitudinal direction is probed using two-particle correlations. The results measured with respect to different reference regions in pseudorapidity exhibit differences, argued to be a result of saturating decorrelation effect above a certain pseudorapidity separation, in contrast to previous publications which assign this observation to non-flow effects. The results are compared to $3+1$ dimensional hydrodynamic and the AMPT transport model calculations. Neither of the models is able to simultaneously describe the pseudorapidity dependence of measurements of anisotropic flow and its fluctuations. The results presented in this work highlight shortcomings in our current understanding of initial conditions and subsequent system expansion in the longitudinal direction. Therefore, they provide input for its improvement.

Pseudorapidity dependence of anisotropic flow and its decorrelations using long-range multiparticle correlations in Pb-Pb and Xe-Xe collisions;ALICE Collaboration;2024;HEPData


Abstract: The azimuthal anisotropy of particles associated with jets (jet particles) at midrapidity is measured for the first time in p--Pb and Pb--Pb collisions at $\sqrt{s_{NN}}$ $=$ 5.02 TeV down to transverse momentum ($\it{p}_{\rm T}$) of 0.5 GeV/$c$ and 2 GeV/$c$, respectively, with ALICE. The second-order Fourier coefficient of the jet-particle azimuthal distribution ($v_2$) in high-multiplicity p--Pb collisions is positive, with a significance reaching 6.8$\sigma$ at low $\it{p}_{\rm T}$. Comparisons with the inclusive charged-particle $v_2$ and with AMPT calculations are discussed. The model describes qualitatively the main features of the jet-particle $v_2$ in high-multiplicity p--Pb collisions and indicates that the positive jet-particle $v_2$ is generated by parton interactions.

Azimuthal anisotropy of jet particles in p-Pb and Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV;ALICE Collaboration;2024;HEPData


Abstract: The measurement of inclusive, prompt, and non-prompt J/$\psi$ production in p$-$Pb collisions at $\sqrt{s_\mathrm{NN}}$ = 8.16 TeV is presented. These results are based on the data sample collected by the ALICE detector during the 2016 LHC p−Pb run, triggered by the Transition Radiation Detector.

J/$\psi$ production at midrapidity in p$-$Pb collisions at $\sqrt{s_{\rm NN}} = 8.16$ TeV;ALICE Collaboration;2023;HEPData


Abstract: The correlations between different moments of two flow amplitudes, extracted with the recently developed asymmetric cumulants, are measured in Pb$-$Pb collisions at $\sqrt{s_{\rm {NN}}} = 5.02$ TeV recorded by the ALICE detector at the LHC. The magnitudes of the measured observables show a dependence on the different moments as well as on the collision centrality, indicating the presence of non-linear response in all even moments up to the eighth. Furthermore, the higher-order asymmetric cumulants show different signatures than the symmetric and lower-order asymmetric cumulants. Comparisons with state-of-the-art event generators using two different parameterizations obtained from Bayesian optimization show differences between data and simulations in many of the studied observables, indicating a need for further tuning of the models behind those event generators. These results provide new and independent constraints on the initial conditions and transport properties of the system created in heavy-ion collisions.

Higher-order correlations between different moments of two flow amplitudes in Pb$-$Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV;ALICE Collaboration;2023;HEPData


Abstract: CERN-LHC-ALICE. The production of the $\psi(2S)$ charmonium state was measured with ALICE in Pb--Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV, in the dimuon decay channel. A significant signal was observed for the first time at LHC energies down to zero transverse momentum, at forward rapidity ($2.5

$\psi(2S)$ suppression in Pb-Pb collisions at the LHC;ALICE Collaboration;2023;HEPData


Abstract: Understanding the role of parton mass and Casimir colour factors in the quantum chromodynamics parton shower represents an important step in characterising the emission properties of heavy quarks. Recent experimental advances in jet substructure techniques have provided the opportunity to isolate and characterise gluon emissions from heavy quarks. In this work, the first direct experimental constraint on the charm-quark splitting function is presented, obtained via the measurement of the groomed shared momentum fraction of the first splitting in charm jets, tagged by a reconstructed D$^{0}$ meson. The measurement is made in proton--proton collisions at $\sqrt{s} = 13$ TeV, in the low jet transverse-momentum interval of $15 \leq p_{\rm{T}}^{jet ch} < 30$ GeV/$c$ where the emission properties are sensitive to parton mass effects. In addition, the opening angle of the first perturbative emission of the charm quark, as well as the number of perturbative emissions it undergoes, are reported. Comparisons to measurements of an inclusive-jet sample show a steeper splitting function for charm quarks compared to gluons and light quarks. Charm quarks also undergo fewer perturbative emissions in the parton shower, with a reduced probability of large-angle emissions.

Measurements of groomed-jet substructure of charm jets tagged by ${\rm D}^0$ mesons in proton-proton collisions at $\sqrt{s}$ = 13 TeV;ALICE Collaboration;2023;HEPData


Abstract: ALICE. We present and compare the charged-particle pseudorapidity densities for pp, p-Pb, and Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV measured over a wide pseudorapidity range (${-3.5 <\eta <5}$), using ALICE at the Large Hadron Collider. The distributions for p-Pb and Pb-Pb collisions are determined as a function of the centrality of the collisions, while results from pp collisions are reported for inelastic events with at least one charged particle at midrapidity. The charged-particle pseudorapidity densities are, under simple and robust assumptions, transformed to charged-particle rapidity densities. This allows for the calculation and the presentation of the evolution of the width of the rapidity distributions and of a lower bound on the Bjorken energy density, as a function of the number of participants in all three collision systems. We find a decreasing width of the particle production, and roughly a ten fold increase in the energy density, as the system size grows.

System-size dependence of the charged-particle pseudorapidity density at $\sqrt{s_{\rm NN}} = 5.02$ TeV for pp, p-Pb, and Pb-Pb collisions;ALICE Collaboration;2023;HEPData


Abstract: The azimuthal anisotropy of inclusive muons produced in p--Pb collisions at $\sqrt{s_\mathrm{NN}}$ = 8.16 TeV is measured by using the ALICE detector at the LHC. The measurement of the second-order Fourier coefficient of the particle azimuthal distribution, $v_2$, is performed as a function of transverse momentum $p_{\rm T}$ in the 0$-$20% high-multiplicity interval at both forward ($2.03 < y_{\mathrm{cms}} < 3.53$) and backward ($-4.46 < y_{\mathrm{cms}} < -2.96$) rapidities over a wide $p_{\rm T}$ range, $0.5 < p_{\rm T} < 10$ GeV/$c$, in which a dominant contribution of muons from heavy-flavour hadron decays is expected at $p_{\rm T} > 2$ GeV/$c$. The $v_2$ coefficient of inclusive muons is extracted using two different techniques, namely two-particle cumulants, used for the first time for heavy-flavour measurements, and forward--central two-particle correlations. A positive $v_2$ is measured at both forward and backward rapidities with a significance larger than 4.7$\sigma$ and 7.6$\sigma$, respectively, in the interval $2

Measurements of azimuthal anisotropies at forward and backward rapidity with muons in high-multiplicity p-Pb collisions at $\sqrt{s_{\rm NN}} = 8.16$ TeV;ALICE Collaboration;2023;HEPData


Abstract: CERN-LHC. Transverse momentum spectra of $\Sigma(1385)^{\pm}$ produced in Pb-Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 5.02 TeV, measured in the rapidity range -0.5 < $y_{\rm{CMS}}$ < 0 with the ALICE detector at the LHC.

$\Sigma(1385)^{\pm}$ resonance production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV;ALICE Collaboration;2022;HEPData


Abstract: No data abstract available.

Measurement of inclusive and leading subjet fragmentation in pp and Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV;ALICE Collaboration;2022;HEPData


Abstract: Measurements of the elliptic flow coefficient relative to the collision plane defined by the spectator neutrons $v_2\{\Psi_\mathrm{SP}\}$ in collisions of Pb ions at center-of-mass energy per nucleon-nucleon pair $\sqrt{s_\mathrm{NN}}=2.76$ TeV and Xe ions at $\sqrt{s_\mathrm{NN}}=5.44$ TeV are reported. The results are presented for charged particles produced at midrapidity as a function of centrality and transverse momentum for the $5-70\%$ and $0.2-6\ \mathrm{GeV}/c$ ranges, respectively. The ratio between $v_2\{\Psi_\mathrm{SP}\}$ and the elliptic flow coefficient relative to the participant plane $v_2\{4\}$, estimated using four-particle correlations, deviates by up to $20\%$ from unity depending on centrality. This observation differs strongly from the magnitude of the corresponding eccentricity ratios predicted by the TRENTo and the elliptic power models of initial state fluctuations that are tuned to describe the participant plane anisotropies. The differences can be interpreted as a decorrelation of the neutron spectator plane and the reaction plane because of fragmentation of the remnants from the colliding nuclei, which points to an incompleteness of current models describing the initial state fluctuations. A significant transverse momentum dependence of the ratio $v_2\{\Psi_\mathrm{SP}\}/v_2\{4\}$ is observed in all but the most central collisions, which may help to understand whether momentum anisotropies at low and intermediate transverse momentum have a common origin in initial state fluctuations. The ratios of $v_2\{\Psi_\mathrm{SP}\}$ and $v_2\{4\}$ to the corresponding initial state eccentricities for Xe--Xe and Pb--Pb collisions at similar initial entropy density show a difference of $(7.0\pm0.9)\%$ with an additional variation of $+1.8\%$ when including RHIC data in the TRENTo parameter extraction. These observations provide new experimental constraints for viscous effects in the hydrodynamic modeling of the expanding quark--gluon plasma produced in heavy-ion collisions at the LHC.

Elliptic flow of charged particles at midrapidity relative to the spectator plane in Pb-Pb and Xe-Xe collisions;ALICE Collaboration;2022;HEPData


Abstract:
CERN-LHC. Measurement of J/psi and Psi(2S) yields and their ratio as a function of charged-particle multiplicity in pp collisions at 13 TeV and p-Pb collisions at 8.16 TeV.

Quarkonia:
- in their dimuon decay
- pT>0

Charged-particle multiplicity in |eta|<1.0, pT>0

Measurements reported in the INEL>0 event class.

Measurement of $\psi$(2S) production as a function of charged-particle pseudorapidity density in pp collisions at $\sqrt{s}$ = 13 TeV and p-Pb collisions at $\sqrt{s_{\rm NN}}$ = 8.16 TeV with ALICE at the LHC;ALICE Collaboration;2022;HEPData


Abstract: No data abstract available.

Study of charged particle production at high $p_{\rm T}$ using event topology in pp, p$-$Pb and Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV;ALICE Collaboration;2023;HEPData


Abstract: The measurement of the production of charm jets, identified by the presence of a $\mathrm{D^0}$ meson in the jet constituents, is presented in proton--proton collisions at centre-of-mass energies of $\sqrt{s}=5.02$ and $13$ TeV with the ALICE detector at the CERN LHC.The $\mathrm{D^0}$ mesons were reconstructed from their hadronic decay $\mathrm{D^0}\rightarrow\mathrm{K}^{-}\mathrm{\pi}^{0}$ and the respective charge conjugate. Jets were reconstructed from $\mathrm{D^0}$-meson candidates and charged particles using the anti-$k_\text{T}$ algorithm, in the jet transverse momentum range $5 < p_{\mathrm{T,ch\ jet}}< 50$ GeV/$c$, pseudorapidity $|\eta_{\mathrm{ch\ jet}}| < 0.9-R$, and with the jet resolution parameters $R = 0.2$, $0.4$, $0.6$. The distribution of the jet momentum fraction carried by a $\mathrm{D^0}$ meson along the jet axis ($z^{\mathrm{ch}}_{||}$) was measured in the range $0.4< z^{\mathrm{ch}}_{||} <1.0$ in four ranges of the jet transverse momentum.Comparisons of results for different collision energies and jet resolution parameters are also presented. The measurements are compared to predictions from Monte Carlo event generators based on leading-order and next-to-leading-order perturbative quantum chromodynamics calculations. A generally good description of the main features of the data is obtained in spite of a few discrepancies at low $p_{\mathrm{T,ch\ jet}}$. Measurements were also done for $R=0.3$ at $\sqrt{s}=5.02$ TeV and are shown along with their comparisons to theoretical predictions in an appendix to this paper.

Measurement of the production of charm jets tagged with ${\rm D^0}$ mesons in pp collisions at $\sqrt{s}$ = 5.02 and 13 TeV;ALICE Collaboration;2022;HEPData


Abstract: Correlations between mean transverse momentum $[p_{\rm T}]$ and anisotropic flow coefficients $v_{\rm 2}$ or $v_{\rm 3}$ are measured as a function of centrality in Pb--Pb and Xe--Xe collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV and 5.44 TeV, respectively, with ALICE. In addition, the recently proposed higher-order correlation between $[p_{\rm T}]$, $v_{\rm 2}$, and $v_{\rm 3}$ is measured for the first time, which shows an anticorrelation for the presented centrality ranges. These measurements are compared with hydrodynamic calculations using IP-Glasma and $\rm T_{R}ENTo$ initial-state shapes, the former based on the Color Glass Condensate effective theory with gluon saturation, and the latter a parameterized model with nucleons as the relevant degrees of freedom. The data are better described by the IP-Glasma rather than the $\rm T_{R}ENTo$ based calculations. In particular, Trajectum and JETSCAPE predictions, both based on the $\rm T_{R}ENTo$ initial state model but with different parameter settings, fail to describe the measurements. As the correlations between $[p_{\rm T}]$ and $v_{\rm n}$ are mainly driven by the correlations of the size and the shape of the system in the initial state, these new studies pave a novel way to characterize the initial state in relativistic heavy-ion collisions.

Characterizing the initial conditions of heavy-ion collisions at the LHC with mean transverse momentum and anisotropic flow correlations;ALICE Collaboration;2022;HEPData


Abstract: No data abstract available.

Multiplicity and rapidity dependence of ${\rm K}^*(892)^0$ and $\phi(1020)$ production in p-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV;ALICE Collaboration;2022;HEPData


Abstract: 'The production of strange hadrons (${\rm K}_{\rm S}^{0}$, $\Lambda$, $\Xi^{\pm}$, and $\Omega^{\pm}$), baryon-to-meson ratios ($\Lambda/{\rm K}_{\rm S}^{0}$, $\Xi/{\rm K}_{\rm S}^{0}$, and $\Omega/{\rm K}_{\rm S}^{0}$), and baryon-to-baryon ratios ($\Xi/\Lambda$, $\Omega/\Lambda$, and $\Omega/\Xi$) associated with jets and the underlying event were measured as a function of transverse momentum ($p_{\rm T}$) in pp collisions at $\sqrt{s} = 13$ TeV and p-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV with the ALICE detector at the LHC. The inclusive production of the same particle species and the corresponding ratios are also reported. The production of multi-strange hadrons, $\Xi^{\pm}$ and $\Omega^{\pm}$, and their associated particle ratios in jets and in the underlying event are measured for the first time. In both pp and p-Pb collisions, the baryon-to-meson and baryon-to-baryon yield ratios measured in jets differ from the inclusive particle production for low and intermediate hadron $p_{\rm T}$ ($0.6$--$6$ GeV/$c$). Ratios measured in the underlying event are in turn similar to those measured for inclusive particle production. In pp collisions, the particle production in jets is compared with Pythia $8$ predictions with three colour-reconnection implementation modes. None of them fully reproduces the data in the measured hadron transverse momentum region. The maximum deviation is observed for $\Xi^{\pm}$ and $\Omega^{\pm}$ which reaches a factor of about six. The event multiplicity dependence is further investigated in p-Pb collisions. In contrast to what is observed in the underlying event, there is no significant event-multiplicity dependence for particle production in jets. The presented measurements provide novel constraints on hadronisation and its Monte Carlo description. In particular, they demonstrate that the fragmentation of jets alone is insufficient to describe the strange and multi-strange particle production in hadronic collisions at LHC energies.'

Production of ${\rm K}^{0}_{\rm{S}}$, $\Lambda$ ($\bar{\Lambda}$), $\Xi^{\pm}$ and $\Omega^{\pm}$ in jets and in the underlying event in pp and p$-$Pb collisions;ALICE Collaboration;2023;HEPData


Abstract: A measurement of the inclusive b-jet production cross section is presented in pp and p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}~=0.5~$TeV, using data collected with the ALICE detector at the LHC. The jets were reconstructed in the central rapidity region $|\eta|<0.5$ from charged particles using the anti-$k_{\rm T}$ algorithm with resolution parameter $R=0.4$. Identification of b jets exploits the long lifetime of b-hadrons, using the properties of secondary vertices and impact parameter distributions. The $p_\mathrm{T}$-differential inclusive production cross section of b jets, as well as the corresponding inclusive b-jet fraction, are reported for pp and p-Pb collisions in the jet transverse momentum range $10 \le p_\mathrm{T,ch\,jet} \le 100$ GeV/$c$, together with the nuclear modification factor, $R_{\rm pPb}^\text{b-jet}$. The analysis thus extends the lower $p_\mathrm{T}$ limit of b-jet measurements at the LHC. The nuclear modification factor is found to be consistent with unity, indicating that the production of b jets in p-Pb at $\sqrt{s_{\mathrm{NN}}}~=0.5~$TeV is not affected by cold nuclear matter effects within the current precision. The measurements are well reproduced by POWHEG NLO pQCD calculations with PYTHIA fragmentation.

Measurement of inclusive charged-particle b-jet production in pp and p-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV;ALICE Collaboration;2022;HEPData


Abstract: The measurement of the production of deuterons, tritons and \ensuremath{^{3}\mathrm{He}}\xspace and their antiparticles in \mbox{Pb--Pb}\xspace collisions at $\sqrt{s_{\mathrm{NN}}} = 5.02$ TeV is presented in this article. The measurements are carried out at midrapidity ($|y| < $ 0.5) as a function of collision centrality using the ALICE detector. The \ensuremath{p_{\rm T}}\xspace-integrated yields, the coalescence parameters and the ratios to protons are reported and compared with nucleosynthesis models. The comparison of these results in different collision systems at different centre-of-mass collision energies reveals a suppression of nucleus production in small systems. In the Statistical Hadronisation Model framework, this can be explained by a small correlation volume where the baryon number is conserved, as already shown in previous fluctuation analyses. However, a different size of the correlation volume is required to describe the proton yields in the same data sets. The coalescence model can describe this suppression by the fact that the wave functions of the nuclei are large and the fireball size starts to become comparable and even much smaller than the actual nucleus at low multiplicities.

Light (anti)nuclei production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV;ALICE Collaboration;2023;HEPData


Abstract: The production of J/$\psi$ is measured at midrapidity ($|y|<0.9$) in proton\textendash proton collisions at $\sqrt{s}$ = 5.02 and 13 TeV, through the dielectron decay channel, using the ALICE detector at the Large Hadron Collider. The data sets used for the analyses correspond to integrated luminosities of $\mathcal{L}_{\rm int}$ = 19.4 $\pm$ 0.4 nb$^{-1}$ and $\mathcal{L}_{\rm int}$ = 32.2 $\pm$ 0.5 nb$^{-1}$ at $\sqrt{s}$ = 5.02 and 13 TeV, respectively. The fraction of non-prompt J/$\psi$ mesons, i.e.\ those originating from the decay of beauty hadrons, is measured down to a transverse momentum $p_{T}$ = 2 GeV/$c$ (1 GeV/$c$) at $\sqrt{s}$ = 5.02 TeV (13 TeV). The $p_{T}$ and rapidity ($y$) differential cross sections, as well as the corresponding values integrated over $p_{T}$ and $y$, are carried out separately for prompt and non-prompt J/$\psi$ mesons. The results are compared with measurements from other experiments and theoretical calculations based on quantum chromodynamics (QCD). The shape of the $p_{T}$ and $y$ distributions of beauty quarks predicted by state-of-the-art perturbative QCD models are used to extrapolate the \bbbar pair cross section at midrapidity and in the total phase space. The total $b\overline{b}$ cross sections are found to be $\sigma_{\rm b \overline{\rm b}} = 541 \pm 45 (\rm stat.) \pm 69 (\rm syst.)_{-12}^{+10} (\rm extr.)~{\rm \mu b}$ and $\sigma_{\rm b \overline{\rm b}}~=~218 \pm 37 (\rm stat.) \pm 32 (\rm syst.)_{-9.1}^{+8.2} (\rm extr.)~{\rm \mu b}$ at \s = 13 and 5.02 TeV, respectively. The value obtained from the combination of ALICE and LHCb measurements in pp collisions at \s = 13 TeV is also provided.

Prompt and non-prompt J/$\psi$ production cross sections at midrapidity in proton-proton collisions at $\sqrt{s}$ = 5.02 and 13 TeV;ALICE Collaboration;2022;HEPData


Abstract: CERN-LHC. We present results on the inclusive production cross section of several quarkonium states J/$\psi$, $\psi(2S)$, $\Upsilon$(1S), $\Upsilon$(2S) and $\Upsilon$(3S), measured with the ALICE detector at the LHC, in pp collisions at $\sqrt{s}$ = 5.02 TeV. The $p_{\rm T}$ and rapidity differential cross sections for J/$\psi$, $\psi(2S)$, $\Upsilon$(1S) are given, as well as the $p_{\rm T}$ and rapidity dependence of the $\psi$(2S)-to-J/$\psi$ cross section ratio. Double differential (in $p_{\rm T}$ and rapidity) J/$\psi$ cross sections are also provided. A comparison to ALICE measurements in pp collisions at $\sqrt{s}$ = 2.76, 7, 8 and 13 TeV is presented. The measurements are performed in the dimuon decay channel at forward rapidity (2.5 < y < 4).

Inclusive quarkonium production in pp collisions at $\sqrt{s} = 5.02$ TeV;ALICE Collaboration;2024;HEPData


Abstract: First measurements of balance functions (BF) of all combinations of identified charged hadron $(\pi,\rm K,\rm p)$ pairs in Pb--Pb collisions at $\sqrt{s_{_{\rm NN}}} =$2.76 TeV recorded by the ALICE detector are presented. The BF measurements are carried out as two-dimensional differential correlators versus the relative rapidity ($\Delta y$) and azimuthal angle ($\Delta\varphi$) of hadron pairs, and studied as a function of collision centrality. The $\Delta\varphi$ dependence of BF is expected to be sensitive to the light quark diffusivity in the quark--gluon plasma. While the BF azimuthal widths of all pairs substantially decrease from peripheral to central collisions, the longitudinal widths exhibit mixed behaviors: BF of $\pi\pi$ and cross-species pairs narrow in more central collisions, whereas those of $\rm KK$ and $\rm pp$ are found to be independent of collision centrality. This dichotomy is qualitatively consistent with the presence of strong radial flow effects and the existence of two-stage quark production in relativistic heavy-ion collisions. Finally, the first measurements of the collision centrality evolution of BF integrals are presented, with the observation that relative charge balancing fractions are nearly independent of collision centrality in Pb--Pb collisions. Overall, the results presented provide new and challenging constraints for theoretical models of hadron production and transport in relativistic heavy-ion collisions.

General balance functions of identified charged hadron pairs of $(\pi,{\rm K},{\rm p})$ in Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$ TeV;ALICE Collaboration;2022;HEPData


Abstract: Measurement of the production cross section of prompt $\Xi^{0}_{\rm c}$ baryons at midrapidity in pp collisions at 5.02TeV for $|y| < 0.5$

Measurement of the production cross section of prompt $\Xi^0_{\rm c}$ baryons at midrapidity in pp collisions at $\sqrt{s}$ = 5.02 TeV;ALICE Collaboration;2021;HEPData


Abstract: The production yield and angular anisotropy of prompt $\mathrm{D_s^+}$ mesons were measured as a function of transverse momentum ($p_\mathrm{T}$) in Pb-Pb collisions at a centre-of-mass energy per nucleon pair $\sqrt{s_\mathrm{NN}}=5.02~\mathrm{TeV}$ collected with the ALICE detector at the LHC. $\mathrm{D_s^+}$ mesons and their charge conjugates were reconstructed at midrapidity ($|y|<0.5$) from their hadronic decay channel $\mathrm{D_s^+\to \phi\pi^+}$, with $\mathrm{\phi\to K^-K^+}$, in the transverse momentum intervals $210~\mathrm{GeV}/c$, the measured $\mathrm{D_s^+}$-meson nuclear modification factor $R_\mathrm{AA}$ is consistent with the one of non-strange D mesons within uncertainties, while at lower $p_\mathrm{T}$ a hint for a $\mathrm{D_s^+}$-meson $R_\mathrm{AA}$ larger than that of non-strange D mesons is seen. The enhanced production of $\mathrm{D_s^+}$ relative to non-strange D mesons is also studied by comparing the $p_\mathrm{T}$-dependent $\mathrm{D_s^+}/\mathrm{D^0}$ production yield ratios in Pb-Pb and in pp collisions. The $\mathrm{D_s^+}/\mathrm{D^0}$ ratio measured in Pb-Pb collisions is found to be on average higher than that in pp collisions in the transverse-momentum interval $2

Measurement of prompt $\rm{D_{s}^{+}}$-meson production and azimuthal anisotropy in Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV;ALICE Collaboration;2023;HEPData


Abstract: The study of the production of nuclei and antinuclei in pp collisions has proven to be a powerful tool to investigate the formation mechanism of loosely bound states in high-energy hadronic collisions. In this paper, the production of protons, deuterons and $^3$He and their charge conjugates at midrapidity is studied as a function of the charged-particle multiplicity in inelastic pp collisions at $\sqrt{s}=5.02$ TeV using the ALICE detector. Within the uncertainties, the yields of nuclei in pp collisions at $\sqrt{s}=5.02$ TeV are compatible with those in pp collisions at different energies and to those in p--Pb collisions when compared at similar multiplicities. The measurements are compared with the expectations of coalescence and Statistical Hadronisation Models. The results suggest a common formation mechanism behind the production of light nuclei in hadronic interactions and confirm that they do not depend on the collision energy but on the number of produced particles.

Production of light (anti)nuclei in pp collisions at $\sqrt{s}~=~5.02$ TeV;ALICE Collaboration;2022;HEPData


Abstract: First measurement of the T-dependence of coherent J/Psi photonuclear production.

First measurement of the ${\mathbf{|\textit t|}}$-dependence of coherent $\mathbf{\rm{J/\psi}}$ photonuclear production;ALICE Collaboration;2021;HEPData


Abstract: Coherent J/Psi and Psi(2S) photoproduction at midrapidity in ultra-peripheral PB PB collisions.

Coherent $J/\psi$ and $\psi'$ photoproduction at midrapidity in ultra-peripheral Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}~=~5.02$ TeV;ALICE Collaboration;2021;HEPData


Abstract: CERN-LHC. In quantum scattering processes between two particles, aspects characterizing the strong and Coulomb forces can be observed in kinematic distributions of the particle pairs. The sensitivity to the interaction potential reaches a maximum at low relative momentum and vanishing distance between the two particles. Ultrarelativistic heavy-ion collisions at the LHC provide an abundant source of many hadron species and can be employed as a measurement method of scattering parameters that is complementary to scattering experiments. This study confirms that momentum correlations of particles produced in Pb--Pb collisions at the LHC provide an accurate measurement of kaon--proton scattering parameters at low relative momentum, allowing precise access to the K- p --> K- p process. This work also validates the femtoscopic measurement in ultrarelativistic heavy-ion collisions as an alternative to scattering experiments and a complementary tool to the study of exotic atoms with comparable precision. In this work, the first femtoscopic measurement of momentum correlations of K- p (K+ ap) and $\K+ p (k- ap) pairs in Pb--Pb collisions at centre-of-mass energy per nucleon pair of Sqrt(s_NN)=5.02~TeV registered by the ALICE experiment is reported. The components of the K- p complex scattering length are extracted and found to be Re f_0=-0.91 +/- ~{0.03}(stat)^{+0.17}_{-0.03}(syst) and Im f_0 = 0.92+/-~{0.05}(stat)^{+0.12}_{-0.33}(syst). The results are compared with chiral effective field theory predictions as well as with existing data from dedicated scattering and exotic kaonic atom experiments.

Kaon-proton strong interaction at low relative momentum via femtoscopy in Pb-Pb collisions at the LHC;ALICE Collaboration;2021;HEPData


Abstract:
Annihilation dynamics plays a fundamental role in the baryon--antibaryon ($B-\overline{B}$) interaction at low-energy and its strength and range are crucial in the assessment of possible baryon bound states.
Experimental data on annihilation cross sections are available for the $p-\overline{p}$ system but not in the low relative momentum region.
Data regarding the $B-\overline{B}$ interaction with strange degrees of freedom are extremely scarce or absent, hence the modeling of the annihilation contributions is mainly based on nucleon--antinucleon ($N-\overline{N}$) results, when available.
In this letter we present a measurement of the $p-\overline{p}$, $p-\overline{\Lambda}\oplus \Lambda-\overline{p}$ and $\Lambda-\overline{\Lambda}$ interaction using correlation functions in the relative momentum space in high-multiplicity triggered pp collisions at \onethree recorded by ALICE at the LHC.
In the $p-\overline{p}$ system the couplings to the mesonic channels in different partial waves are extracted by adopting a coupled-channel approach with recent $\chi$EFT potentials. The inclusion of these inelastic channels provides good agreement with the data, showing a significant presence of the annihilation term down to zero momentum.
Predictions obtained using the Lednick$\'y$--Lyuboshits formula and scattering parameters obtained from
heavy-ion collisions, hence mainly sensitive to elastic processes, are compared with the experimental $p-\overline{\Lambda}\oplus \Lambda-\overline{p}$ and $\Lambda-\overline{\Lambda}$ correlations. The model describes the $\Lambda-\overline{\Lambda}$ data and underestimates the $p-\overline{\Lambda}\oplus \Lambda-\overline{p}$ data in the region of momenta below 200 MeV/$c$.
The observed deviation indicates a different contribution of annihilation channels to the two systems containing strange hadrons.

Investigating the role of strangeness in baryon$-$antibaryon annihilation at the LHC;ALICE Collaboration;2022;HEPData


Abstract: The measurement of the azimuthal-correlation function of prompt D mesons with charged particles in pp collisions at a centre-of-mass energy of $\sqrt{s} =$ 13 TeV with the ALICE detector is reported, considering D$^{0}$, D$^{+}$, and D$^{*+}$ mesons in the transverse-momentum interval $3 < p_{\mathrm{T}} < 36$ GeV/$c$ at midrapidity ($|y| < 0.5$), and charged particles with $p_{\mathrm{T}} > 0.3$ GeV/$c$ and pseudorapidity $|\eta| < 0.8$. This measurement has an improved precision and provides an extended transverse-momentum coverage compared to previous ALICE measurements at lower energies. The study is also performed as a function of the charged-particle multiplicity, showing no modifications of the correlation function with multiplicity within uncertainties. The properties and the transverse-momentum evolution of the near- and away-side correlation peaks are studied and compared with predictions from various Monte Carlo event generators. The obtained results can provide constraints on the generators. Among those considered, PYTHIA8 and POWHEG+PYTHIA6 provide the best description of the measured observables.

Investigating charm production and fragmentation via azimuthal correlations of prompt D mesons with charged particles in pp collisions at $\sqrt{s} = 13$ TeV;ALICE Collaboration;2022;HEPData


Abstract: CERN-LHC. Long- and Short-range correlations and their event-scale dependence in high-multiplicity pp collisions at $\sqrt{s}$ = 13 TeV measured by ALICE are reported.

Long- and short-range correlations and their event-scale dependence in high-multiplicity pp collisions at $\boldsymbol{\sqrt{{\textit s}}}=13$ TeV;ALICE Collaboration;2021;HEPData


Abstract: Measurement of the elliptic flow coefficient $v_2$ of electrons from beauty-hadron decays in the centrality range 30-50% for $\sqrt{s_{\rm NN}}=5.02 {\rm~TeV}$

Elliptic flow of electrons from beauty-hadron decays in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV;ALICE Collaboration;2021;HEPData


Abstract: Information that applies to all data tables.

Inclusive heavy-flavour production at central and forward rapidity in Xe-Xe collisions at $\sqrt {s_{NN}}$=5.44$ TeV;ALICE Collaboration;2021;HEPData


Abstract: CERN-LHC. The production of $\Upsilon$ mesons in Pb–Pb collisions at a centre-of-mass energy per nucleon pair $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV is measured with the muon spectrometer of ALICE at the LHC. The yields as well as the nuclear modification factors are determined in the forward rapidity region 2.5 $

$\Upsilon$ production and nuclear modification at forward rapidity in Pb-Pb collisions at $\mathbf{\sqrt{\textit{s}_{\textbf{NN}}}=5.02}$ TeV;ALICE Collaboration;2021;HEPData


Abstract:
Measurement of Z-boson production at forward rapidity in p-Pb collisions at a center-of-mass energy per nucleon pair of 8.16 TeV and Pb-Pb collisions at 5.02 TeV. The measurement is done in the dimuon decay channel.

The fiducial region is defined by (all in laboratory frame)
- eta (pseudorapidity) of individual muons between -4.0 and -2.5
- pT (transverse momentum) of individual muons larger than 20 GeV/c
- y (rapidity) of dimuon between 2.5 and 4.0
- mass of dimuon between 60 and 120 GeV/c^2

For Pb-Pb collisions the laboratory frame and cms frame coincide. For p-Pb collisions the nucleon-nucleon cms is boosted with respect to the laboratory frame by $\Delta y_{cms} = \pm 0.465$

Z-boson production in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=8.16$ TeV and Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV;ALICE Collaboration;2020;HEPData


Abstract: No data abstract available.

Measurements of the groomed and ungroomed jet angularities in pp collisions at $\sqrt{s} = 5.02$ TeV;ALICE Collaboration;2022;HEPData


Abstract: One of the big challenges for nuclear physics today is to understand, starting from first principles, the effective interaction between hadrons with different quark content. First successes have been achieved utilizing techniques to solve the dynamics of quarks and gluons on discrete space-time lattices. Experimentally, the dynamics of the strong interaction have been studied by scattering hadrons off each other. Such scattering experiments are difficult or impossible for unstable hadrons and hence, high quality measurements exist only for hadrons containing up and down quarks. In this work, we demonstrate that measuring correlations in the momentum space between hadron pairs produced in ultrarelativistic proton--proton collisions at the CERN LHC provides a precise method to obtain the missing information on the interaction dynamics between any pair of unstable hadrons. Specifically, we discuss the case of the interaction of baryons containing strange quarks (hyperons). We demonstrate for the first time how, using precision measurements of p--$\Omega^{-}$ correlations, the effect of the strong interaction for this hadron-hadron pair can be studied and compared with predictions from lattice calculations.

A new laboratory to study hadron-hadron interactions;ALICE Collaboration;2022;HEPData


Abstract: The production of $\pi^{\pm}$, $\mathrm{K}^{\pm}$, and $(\mathrm{\overline{p}})\mathrm{p}$ is measured in pp collisions at $\sqrt{s}\,= 13~\mathrm{TeV}$ in different topological regions of the events. Particle transverse momentum $(p_{\mathrm{T}})$ spectra are measured in the ``toward'', ``transverse'', and ``away'' angular regions defined with respect to the direction of the leading particle in the event. While the toward and away regions contain the fragmentation products of the near-side and away-side jets, respectively, the transverse region is dominated by particles from the Underlying Event (UE). The relative transverse activity classifier, $R_{\mathrm{T}} = N_{\mathrm{T}} / \langle N_{\mathrm{T}} \rangle$, is used to group events according to their UE activity, where $N_{\mathrm{T}}$ is the measured charged-particle multiplicity per event in the transverse region and $\langle N_{\mathrm{T}} \rangle$ is the mean value over all the analysed events. The first measurements of identified particle $p_{\mathrm{T}}$ spectra as a function of $R_{\mathrm{T}}$ in the three topological regions are reported. It is found that the yield of high transverse momentum particles relative to the $R_{\mathrm{T}}$-integrated measurement decreases with increasing $R_{\mathrm{T}}$ in both the toward and the away regions, indicating that the softer UE dominates particle production as $R_{\mathrm{T}}$ increases and validating that $R_{\mathrm{T}}$ can be used to control the magnitude of the UE. Conversely, the spectral shapes in the transverse region harden significantly with increasing $R_{\mathrm{T}}$. This hardening follows a mass ordering, being more significant for heavier particles. Finally, it is observed that the $p_{\mathrm{T}}$-differential particle ratios $(\mathrm{p} + \mathrm{\overline{p}})/(\pi^{+} + \pi^{-})$ and $(\mathrm{K}^{+} + \mathrm{K}^{-})/(\pi^{+} + \pi^{-})$ in the low UE limit $(R_{\mathrm{T}} \rightarrow 0)$ approach expectations from Monte Carlo generators such as PYTHIA 8 and EPOS LHC, where the jet-fragmentation models have been tuned to reproduce $\mathrm{e}^{+}\mathrm{e}^{-}$ results.

Production of pions, kaons and protons as a function of the transverse event activity in pp collisions at $\sqrt{s}=13$ TeV;ALICE Collaboration;2023;HEPData


Abstract: Measurements of the inclusive \jpsi yield as a function of charged-particle pseudorapidity density \dndeta in pp collisions at \sqrts{13} with ALICE at the LHC are reported. The \jpsi meson yield is measured at midrapidity ($|y|<0.9$) in the dielectron channel, for events selected based on the charged-particle multiplicity at midrapidity ($|\eta|<1$) and at forward rapidity ($-3.7<\eta<-1.7$ and $2.8<\eta<5.1$); both observables are normalized to their corresponding averages in minimum bias events. The increase of the normalized \jpsi yield with normalized \dndeta is significantly stronger than linear and dependent on the transverse momentum. The data are compared to theoretical predictions, which describe the observed trends well, albeit not always quantitatively.

Multiplicity dependence of J/$\psi$ production at midrapidity in pp collisions at $\sqrt{s}$ = 13 TeV;ALICE Collaboration;2020;HEPData


Abstract: The polarization of inclusive J/$\psi$ and $\Upsilon(1{\rm S})$ produced in Pb-Pb collisions at $\sqrt{s_{\rm{NN}}}=5.02$ TeV at the LHC is measured with the ALICE detector. The study is carried out by reconstructing the quarkonium through its decay to muon pairs in the rapidity region $2.5

First measurement of quarkonium polarization in nuclear collisions at the LHC;ALICE Collaboration;2021;HEPData


Abstract: Anisotropic flow coefficients, $v_n$, non-linear flow mode coefficients, $\chi_{n,mk}$, and correlations among different symmetry planes, $\rho_{n,mk}$ are measured in Pb--Pb collisions at $\sqrt{s_\mathrm{NN}}=5.02$ TeV. Results obtained with multi-particle correlations are reported for the transverse momentum interval $0.2

Higher harmonic non-linear flow modes of charged hadrons in Pb-Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 5.02 TeV;ALICE Collaboration;2020;HEPData


Abstract: This Letter presents the first direct investigation of the p$-\Sigma^{0}$ interaction, using the femtoscopy technique in high-multiplicity pp collisions at $\sqrt{s} = 13$ TeV measured by the ALICE detector. The $\Sigma^{0}$ is reconstructed via the decay channel to $\Lambda\gamma$, and the subsequent decay of $\Lambda$ to p$\pi^-$. The photon is detected via the conversion in material to e$^+$e$^-$ pairs exploiting the unique capability of the ALICE detector to measure electrons at low transverse momenta. The measured p$-\Sigma^{0}$ correlation indicates a shallow strong interaction. The comparison of the data to several theoretical predictions obtained employing the Correlation Analysis Tool using the Schrödinger Equation (CATS) and the Lednický$-$Lyuboshits approach shows a reasonable agreement. The presented femtoscopic data cannot yet discriminate between different models, which is also the case for the available scattering and hypernuclei data. Nevertheless, the p$-\Sigma^{0}$ correlation function is found to be sensitive to the strong interaction, and driven by the interplay of the different spin and isospin channels. This pioneering study demonstrates the feasibility of a femtoscopic measurement in the p$-\Sigma^{0}$ channel and with the expected larger data samples in LHC Run 3 and Run 4, the p$-\Sigma^{0}$ interaction will be constrained with high precision.

Investigation of the p-$\Sigma^{0}$ interaction via femtoscopy in pp collisions;ALICE Collaboration;2020;HEPData


Abstract: No data abstract available.

Measurement of the (anti-)$^{3}$He elliptic flow in Pb-Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 5.02 TeV;ALICE Collaboration;2020;HEPData


Abstract: This paper presents the measurements of $\pi^{\pm}$, $K^{\pm}$, $p$ and $\bar{p}$ transverse momentum ($p_{\rm T}$) spectra as a function of charged-particle multiplicity density in proton-proton (pp) collisions at $\sqrt{s} = 13\ {\rm TeV}$ with the ALICE detector at the LHC. Such study allows us to isolate the center-of-mass energy dependence of light-flavour particle production. The measurements reported here cover a $p_{\rm T}$ range from 0.1 ${\rm GeV}/c$ to 20 ${\rm GeV}/c$ and are done in the rapidity interval $|y|<0.5$. The $p_{\rm T}$-differential particle ratios exhibit an evolution with multiplicity, similar to that observed in pp collisions at $\sqrt{s} = 7\ {\rm TeV}$, which is qualitatively described by some of the hydrodynamical and pQCD-inspired models discussed in this paper. Furthermore, the $p_{\rm T}$-integrated hadron-to-pion yield ratios measured in pp collisions at two different center-of-mass energies are consistent when compared at similar multiplicities. This also extends to strange and multi-strange hadrons, suggesting that, at LHC energies, particle hadrochemistry scales with particle multiplicity the same way under different collision energies and colliding systems.

Multiplicity dependence of $\pi$, K, and p production in pp collisions at $\sqrt{s} = 13$ TeV;ALICE Collaboration;2020;HEPData


Abstract: CERN-LHC. The inclusive J/$\psi$ meson production in Pb--Pb collisions at a center-of-mass energy per nucleon--nucleon collision of $\sqrt{s_{\rm NN}} = 5.02$~TeV at midrapidity ($|y| < 0.9$) is reported by the ALICE Collaboration. The measurements are performed in the dielectron decay channel, as a function of event centrality and J/$\psi$ transverse momentum $p_{\rm T}$, down to $p_{\rm T}=0$~GeV/$c$. The J/$\psi$ mean transverse momentum $\langle p_{\rm T} \rangle$ and $r_{\rm AA}$ ratio, defined as $\langle p^{2}_{\rm T}\rangle_{\text{PbPb}} / \langle p^{2}_{\rm T} \rangle_{\rm pp}$, are evaluated. Both observables show a centrality dependence decreasing towards central (head-on) collisions. The J/$\psi$ nuclear modification factor $R_{\rm AA}$ exhibits a strong $p_{\rm T}$ dependence with a large suppression at high $p_{\rm T}$ and an increase to unity for decreasing $p_{\rm T}$. When integrating over the measured momentum range $p_{\rm T}<10$~GeV/$c$, the J/$\psi$ $R_{\rm AA}$ shows a weak centrality dependence. Each measurement is compared with results at lower center-of-mass energies and with ALICE measurements at forward rapidity, as well as to theory calculations. All reported features of the J/$\psi$ production at low $p_{\rm T}$ are consistent with a dominant contribution to the J/$\psi$ yield originating from charm quark (re)combination.

Centrality and transverse momentum dependence of inclusive J/$\psi$ production at midrapidity in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV;ALICE Collaboration;2020;HEPData


Abstract: No data abstract available.

Production of pions, kaons, (anti-)protons and $\phi$ mesons in Xe-Xe collisions at $\sqrt{s_{\rm NN}} = 5.44$ TeV;ALICE Collaboration;2021;HEPData


Abstract: CERN-LHC-ALICE. $\Upsilon$ production in $\mbox{p--Pb}$ interactions is studied at the centre-of-mass energy per nucleon--nucleon collision $\sqrt{s_{_{\rm {NN}}}} = 8.16$~TeV with the ALICE detector at the CERN LHC. The measurement is performed reconstructing bottomonium resonances via their dimuon decay channel, in the centre-of-mass rapidity intervals $2.03

Inclusive $\Upsilon$ production in p-Pb collisions at $\sqrt{s_{\rm NN}}$ = 8.16 TeV;ALICE Collaboration;2020;HEPData


Abstract: The study of (anti-)deuteron production in pp collisions has proven to be a powerful tool to investigate the formation mechanism of loosely bound states in high energy hadronic collisions. In this paper the production of $\text{(anti-)deuterons}$ is studied as a function of the charged particle multiplicity in inelastic pp collisions at $\sqrt{s}=13$ TeV using the ALICE experiment. Thanks to the large accumulated integrated luminosity, it has been possible to measure (anti-)deuteron production in pp collisions up to the same charged particle multiplicity ($\mathrm{d}N_{\mathrm{ch}}/\mathrm{d}\eta\sim26$) as measured in the high multiplicity p-Pb collisions at similar centre-of-mass energies. Within the uncertainties, the deuteron yield in pp collisions resembles the one in p-Pb interactions, suggesting a common formation mechanism behind the production of light nuclei in hadronic interactions.In this context the measurements are compared with the expectations of coalescence and Statistical Hadronisation Models (SHM).

(Anti-)Deuteron production in pp collisions at $\sqrt{s}=13$ TeV;ALICE Collaboration;2020;HEPData


Abstract:
The first measurements of the scattering parameters of $\Lambda$K pairs in all three charge combinations ($\Lambda$K$^{+}$, $\Lambda$K$^{-}$, and $\Lambda\mathrm{K^{0}_{S}}$) are presented.
The results are achieved through a femtoscopic analysis of $\Lambda$K correlations in Pb--Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV recorded by ALICE at the LHC.
The femtoscopic correlations result from strong final-state interactions, and are fit with a parametrization allowing for both the characterization of the pair emission source and the measurement of the scattering parameters for the particle pairs.
Extensive studies with the THERMINATOR 2 event generator provide a good description of the non-femtoscopic background, which results mainly from collective effects, with unprecedented precision.
Furthermore, together with HIJING simulations, this model is used to account for contributions from residual correlations induced by feed-down from particle decays.
The extracted scattering parameters indicate that the strong force is repulsive in the $\Lambda\mathrm{K^{+}}$ interaction and attractive in the $\Lambda\mathrm{K^{-}}$ and $\Lambda\mathrm{K^{0}_{S}}$ interactions.
The results suggest an effect arising either from different quark--antiquark interactions between the pairs ($\rm s\overline{s}$ in $\Lambda$K$^{+}$ and $\rm u\overline{u}$ in $\Lambda$K$^{-}$) or from different net strangeness for each system (S=0 for $\Lambda$K$^{+}$, and S=$-2$ for $\Lambda$K$^{-}$).
Finally, the $\Lambda$K systems exhibit source radii larger than expected from extrapolation from identical particle femtoscopic studies.
This effect is interpreted as resulting from the separation in space--time of the single-particle $\Lambda$ and K source distributions.

$\Lambda\rm{K}$ femtoscopy in Pb-Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 2.76 TeV;ALICE Collaboration;2021;HEPData


Abstract: Two-particle azimuthal correlations are measured with the ALICE apparatus in pp collisions at $\sqrt{s} = 13$ TeV to explore strangeness- and multiplicity-related effects in the fragmentation of jets and the transition regime between bulk and hard production, probed with the condition that a strange meson ($K_S^0$) or a baryon ($\Lambda$) with transverse momentum $p_{\mathrm{T}}>3$ GeV/$c$ is produced. Azimuthal correlations between kaons or $\Lambda$ hyperons with other hadrons are presented at midrapidity for a broad range of the trigger ($3 < p_{\mathrm{T}}^{\mathrm{trigg}} < 20$ GeV/$c$) and associated particle $p_{\mathrm{T}}$ (1 GeV/$c$ $ < p_{\mathrm{T}}^{\mathrm{assoc}} < p_{\mathrm{T}}^{\mathrm{trigg}}$), for minimum-bias events and as a function of the event multiplicity. The near- and away-side peak yields are compared for the case of either $K_S^0$ or $\Lambda$($\overline{\Lambda}$) being the trigger particle with that of inclusive hadrons (a sample dominated by pions). In addition, the measurements are compared with predictions from PYTHIA 8 and EPOS LHC event generators.

K$^{0}_{\rm S}$- and (anti-)$\Lambda$-hadron correlations in pp collisions at $\sqrt{s} = 13$ TeV;ALICE Collaboration;2022;HEPData


Abstract: We present, for the first time at LHC energies, the forward rapidity gap spectra from proton-lead collisions for both proton and lead dissociation processes. The analysis is performed over 10.4 units of pseudorapidity at a center-of-mass energy of $\sqrt{s_{\mathrm{NN}}}=8.16~\text{TeV}$, i.e. almost 300 times higher than previous measurements of diffractive production in proton-nucleus collisions. For lead dissociation processes, which corresspond to the pomeron-lead event topology, the EPOS-LHC predictions are a factor of two below the unfolded data but the model does give a reasonable description of the shape of the spectrum. For the pomeron-proton topology the EPOS-LHC, QGSJET II and HIJING generator predictions are all at least a factor of five below the data. This effect can be explained by a significant contribution of ultra-peripheral photoproduction events mimicking the signature of diffractive processes. The obtained data may be of significant help in understanding the high energy limit of QCD and modeling cosmic ray air showers.

First measurement of the forward rapidity gap distribution in pPb collisions at $\sqrt{s_\mathrm{NN}}$ = 8.16 TeV;CMS Collaboration;2023;HEPData


Abstract: No data abstract available.

Evidence for X(3872) in PbPb collisions and studies of its prompt production at $\sqrt{s_\mathrm{NN}}=$ 5.02 TeV;CMS Collaboration;2021;HEPData


Abstract: Differential cross sections for the Drell-Yan process, including Z boson production, using the dimuon decay channel are measured in proton-lead (pPb) collisions at a nucleon-nucleon centre-of-mass energy of 8.16 TeV. A data sample recorded with the CMS detector at the LHC is used, corresponding to an integrated luminosity of 173 nb$^{-1}$. The differential cross section as a function of the dimuon mass is measured in the range 15-600 GeV, for the first time in proton-nucleus collisions. It is also reported as a function of dimuon rapidity over the mass ranges 15-60 GeV and 60-120 GeV, and ratios for the p-going over the Pb-going beam directions are built. In both mass ranges, the differential cross sections as functions of the dimuon transverse momentum $p_\textrm{T}$ and of a geometric variable $\phi^{*}$ are measured, where $\phi^{*}$ highly correlates with $p_\textrm{T}$ but is determined with higher precision. In the Z mass region, the rapidity dependence of the data indicate a modification of the distribution of partons within a lead nucleus as compared to the proton case. The data are more precise than predictions based upon current models of parton distributions.

Study of Drell-Yan dimuon production in proton-lead collisions at $\sqrt{s_\mathrm{NN}} =$ 8.16 TeV;CMS Collaboration;2021;HEPData


Abstract: CERN-LHC. Measurements of the b jet pair transverse momentum asymmetry in proton-proton and lead-lead collisions at a centre-of-mass energy of 5.02 TeV with data collected in 2015. The leading and subleading jets are required to be above 100 and 30 GeV, respectively. Both jets are restricted to an absolute pseudorapidity of less than 1.6 units.

Comparing transverse momentum balance of b jet pairs in pp and PbPb collisions at $\sqrt{s_\mathrm{NN}} =$ 5.02 TeV;CMS Collaboration;2018;HEPData


Abstract: CERN-LHC. The production cross sections of the $B^{+}$, $B^{0}$, and $B_{s}^{0}$ mesons, and of their charge conjugates, are measured via exclusive hadronic decays in $p$ + Pb collisions at the center-of-mass energy $\sqrt{s_{NN}} = 5.02$ TeV with the CMS detector at the CERN LHC.

Study of B meson production in pPb collisions at sqrt(s_NN) = 5.02 TeV;CMS Collaboration;2016;HEPData


Abstract: CERN-LHC. Measurements of two- and multi-particle angular correlations in pp collisions at sqrt(s) = 5, 7, and 13 TeV are presented as a function of charged-particle multiplicity. The data, corresponding to integrated luminosities of 1.0 inverse picobarn (5 TeV), 6.2 inverse picobarns (7 TeV), and 0.7 inverse picobarns (13 TeV), were collected using the CMS detector at the LHC. The second-order (v[2]) and third-order (v[3]) azimuthal anisotropy harmonics of unidentified charged particles, as well as v[2] of K0 short and Lambda/anti-Lambda particles, are extracted from long-range two-particle correlations as functions of particle multiplicity and transverse momentum. For high-multiplicity pp events, a mass ordering is observed for the v[2] values of charged hadrons (mostly pions), K0 short, and Lambda/anti-Lambda, with lighter particle species exhibiting a stronger azimuthal anisotropy signal below pt of about 2 GeV/c. For 13 TeV data, the v[2] signals are also extracted from four- and six-particle correlations for the first time in pp collisions, with comparable magnitude to those from two-particle correlations. These observations are similar to those seen in pPb and PbPb collisions, and support the interpretation of a collective origin for the observed long-range correlations in high-multiplicity pp collisions.

Evidence for collectivity in pp collisions at the LHC;CMS Collaboration;2017;HEPData


Abstract: A search for an exotic decay of the Higgs boson to a Z boson and a light pseudoscalar particle (a), decaying to a pair of leptons and a pair of photons, respectively, is presented. The search is based on proton-proton collision data at a center-of-mass energy of $\sqrt{s}$ = 13 TeV, collected with the CMS detector and corresponding to an integrated luminosity of 138 fb$^{-1}$. The analysis probes pseudoscalar masses $m_{a}$ between 1 and 30 GeV, leading to two pairs of well-isolated leptons and photons. Upper limits at 95% confidence level are set on the Higgs boson production cross section times its branching fraction to two leptons and two photons. The observed (expected) limits are in the range of 1.1-17.8 (1.7-17.9) fb within the probed $m_{a}$ interval. An excess of data above the expected standard model background with a local (global) significance of 2.6 (1.3) standard deviations is observed for a mass hypothesis of $m_{a}$ = 3 GeV. Limits on models involving axion-like particles, formulated as an effective field theory, are also reported.

Search for an exotic decay of the Higgs boson into a Z boson and a pseudoscalar particle in proton-proton collisions at $\sqrt{s}$ = 13 TeV;CMS Collaboration;2023;HEPData


Abstract: No data abstract available.

Measurement of simplified template cross sections of the Higgs boson produced in association with W or Z bosons in the H $\to$$\mathrm{b\bar{b}}$ decay channel in proton-proton collisions at $\sqrt{s}$ = 13 TeV;CMS Collaboration;2023;HEPData


Abstract: No data abstract available.

Observation of the $\Lambda_\text{b}^0\to J/\psi\Xi^-K^+$ decay;CMS Collaboration;2024;HEPData


Abstract: No data abstract available.

Measurement of the low-energy antitriton inelastic cross section;ALICE Collaboration;2023;HEPData


Abstract: CERN-LHC. A measurement of the extent of entanglement in top quark-antiquark ($\mathrm{t\bar{t}}$) events produced in proton-proton collisions at a center-of-mass energy of 13 TeV is performed with the data recorded by the CMS experiment at the CERN LHC in 2016, and corresponding to an integrated luminosity of 36.3 $\mathrm{fb^{-1}}$. An entanglement-sensitive observable $D$ is derived from the top quark spin-dependent parts of the $\mathrm{t\bar{t}}$ production density matrix and measured in the region of the invariant mass of the $\mathrm{t\bar{t}}$ ($m(\mathrm{t\bar{t}})$) being $345 < m(\mathrm{t\bar{t}}) < 400$ GeV and the relative velocity between the lab and $\mathrm{t\bar{t}}$ reference frames, $\beta_z(\mathrm{t\bar{t}}) = |(p_z^{\mathrm{t}} + p_z^{\mathrm{\bar{t}}}) / (E^{\mathrm{t}} + E^{\mathrm{\bar{t}}})|$, being $\beta_z(\mathrm{t\bar{t}}) < 0.9$ at the reconstruction level. Values of $D < -1/3$ are evidence of entanglement. Both the expected and observed values are reported at the parton level for $m(\mathrm{t\bar{t}}) < 400$ and $\beta_z(\mathrm{t\bar{t}}) < 0.9$.

Observation of quantum entanglement in top quark pair production in proton-proton collisions at $\sqrt{s}$ = 13 TeV;CMS Collaboration;2024;HEPData


Abstract: No data abstract available.

Search for the lepton flavor violating $\tau \to $ 3$\mu$ decay in proton-proton collisions at $\sqrt{s}$ = 13 TeV;CMS Collaboration;2023;HEPData


Abstract: A search for long-lived heavy neutral leptons (HNLs) is presented, which considers the hadronic final state and coupling scenarios involving all three lepton generations in the 2-20 GeV HNL mass range for the first time. Events comprising two leptons (electrons or muons) and jets are analyzed in a data sample of proton-proton collisions, recorded with the CMS experiment at the CERN LHC at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 138 $\text{fb}^{-1}$. A novel jet tagger, based on a deep neural network, has been developed to identify jets from an HNL decay using various features of the jet and its constituent particles. The network output can be used as a powerful discriminating tool to probe a broad range of HNL lifetimes and masses. Contributions from background processes are determined from data. No excess of events in data over the expected background is observed. Upper limits on the HNL production cross section are derived as functions of the HNL mass and the three coupling strengths $V_{\ell\text{N}}$ to each lepton generation $\ell$ and presented as exclusion limits in the coupling-mass plane, as lower limits on the HNL lifetime, and on the HNL mass. In this search, the most stringent limit on the coupling strength is obtained for pure muon coupling scenarios; values of $|V_{\mu\text{N}}|^{2}>5\,(4)\times 10^{-7}$ are excluded for Dirac (Majorana) HNLs with a mass of 10 GeV at a confidence level of 95% that correspond to proper decay lengths of 17 (10) mm.

Search for long-lived heavy neutral leptons with lepton flavour conserving or violating decays to a jet and a charged lepton;CMS Collaboration;2023;HEPData


Abstract: A combination of the results of several searches for the electroweak production of the supersymmetric partners of standard model bosons, and of charged leptons, is presented. All searches use proton-proton collision data at $\sqrt{s}=13~\mathrm{TeV}$ recorded with the CMS detector at the LHC in 2016-2018. The analyzed data correspond to an integrated luminosity of up to $137~\mathrm{fb}^{-1}$. The results are interpreted in terms of simplified models of supersymmetry. Two new interpretations are added with this combination: a model spectrum with the bino as the lightest supersymmetric particle together with mass-degenerate higgsinos decaying to the bino and a standard model boson, and the compressed-spectrum region of a previously studied model of slepton pair production. Furthermore, improved analysis techniques are employed to optimize sensitivity for the compressed spectra in the wino and slepton pair production models. The results are consistent with expectations from the standard model. The combination provides a more comprehensive coverage of the model parameter space than the individual searches, extending the exclusion by up to 125 GeV, and also targets some of the intermediate gaps in the mass coverage.

Combined search for electroweak production of winos, binos, higgsinos, and sleptons in proton-proton collisions at $\sqrt{s}$ = 13 TeV;CMS Collaboration;2024;HEPData


Abstract: Diboson production in association with jets is studied in the fully leptonic final states, $\textrm{pp} \to (\textrm{Z}/\gamma^*)(\textrm{Z}/\gamma^*)+\textrm{jets} \to 2\ell2\ell'+\textrm{jets}$, ($\ell,\ell' = \textrm{e}$ or $\mu$) in proton-proton collisions at a center-of-mass energy of 13 TeV. The data sample corresponds to an integrated luminosity of 138 fb$^{-1}$ collected with the CMS detector at the LHC. Differential distributions and normalized differential cross sections are measured as a function of jet multiplicity, transverse momentum $p_\textrm{T}$, pseudorapidity $\eta$, invariant mass and $\Delta\eta$ of the highest-$p_\textrm{T}$ and second-highest-$p_\textrm{T}$ jets, and as a function of invariant mass of the four-lepton system for events with various jet multiplicities. These differential cross sections are compared with theoretical predictions that mostly agree with the experimental data. However, in a few regions we observe discrepancies between the predicted and measured values. Further improvement of the predictions is required to describe the ZZ+jets production in the whole phase space.

Measurement of differential ZZ + jets production cross sections in pp collisions at $\sqrt{s}$ = 13 TeV;CMS Collaboration;2024;HEPData


Abstract: A measurement of the primary Lund jet plane (LJP) density in inclusive jet production in proton-proton collisions is presented. The analysis uses $138\fbinv$ of data collected by the CMS experiment at $\sqrt{s} = 13$ TeV. The LJP, a representation of the phase space of emissions inside jets, is constructed using iterative jet declustering. The transverse momentum $k_\text{T}$ and the splitting angle $\Delta R$ of an emission relative to its emitter are measured at each step of the jet declustering process. The average density of emissions in $\ln(k_\mathrm{T}/\text{GeV})$ and $\ln (R/\Delta R)$ is measured for jets with distance parameters $R = 0.4$ or $0.8$ and transverse momentum $p_\mathrm{T} > $ 700 \GeV and rapidity $|y| < 1.7$. The jet substructure is measured using the charged-particle tracks of the jet. The measured distributions, unfolded to the level of stable particles, are compared with theoretical predictions from state-of-the-art simulations and with perturbative quantum chromodynamics calculations. Due to the ability of the LJP to factorize physical effects, the measurement can be used to improve different aspects of the physics modeling in event generators.

Measurement of the primary Lund jet plane density in proton-proton collisions at $\sqrt{s}$ = 13 TeV;CMS Collaboration;2024;HEPData


Abstract: No data abstract available.

A search for bottom-type vector-like quark pair production in dileptonic and fully hadronic final states in proton-proton collisions at $\sqrt{s}$ = 13 TeV;CMS Collaboration;2024;HEPData


Abstract: No data abstract available.

Nonresonant central exclusive production of charged-hadron pairs in proton-proton collisions at $\sqrt{s}$ = 13 TeV;TOTEM Collaboration;2024;HEPData


Abstract: A search for partonic collective effects inside jets produced in proton-proton collisions is performed via correlation measurements of charged constituents using the CMS detector at the CERN LHC. The analysis uses data collected at a center-of-mass energy of $\roots=13\TeV$, corresponding to an integrated luminosity of $138~\fbinv$. Jets are reconstructed with the anti-$\kt$ algorithm with a distance parameter of 0.8 and are required to have transverse momentum greater than $550\GeV$ and pseudorapidity $\abs{\eta}<1.6$. Two-particle correlations among the charged constituents within the jets are studied as functions of the particles azimuthal angle and pseudorapidity separations ($\Delta\phi^*$ and $\Delta\eta^*$) in a jet coordinate basis, where constituents $\phi^*,\eta^*$ are defined relative to the direction of the jet. The correlation functions are studied in classes of in-jet charged-particle multiplicity up to $N_{ch}^j\approx100$. Fourier harmonics are extracted from long-range azimuthal correlation functions to characterize azimuthal anisotropy for $\abs{\Delta\eta^*}>2$. For low-multiplicity jets, the long-range elliptic anisotropic harmonic, $v^*_2$, is observed to decrease with $N_{ch}^j$. This trend is well described by Monte Carlo event generators. However, a rising trend for $v^*_2$ emerges at $N_{ch}^j\gtrsim80$, hinting at a possible onset of collective behavior, which is not reproduced by the models tested. This observation yields new insights into the dynamics of parton fragmentation processes in the vacuum.

Observation of enhanced long-range elliptic anisotropies inside high-multiplicity jets in pp collisions at $\sqrt{s}$ = 13 TeV;CMS Collaboration;2024;HEPData


Abstract: No data abstract available.

Search for exotic decays of the Higgs boson to a pair of pseudoscalars in the $\mu\mu$bb and $\tau\tau$bb final states;CMS Collaboration;2024;HEPData


Abstract: Ultrarelativistic nuclear collisions create a strongly interacting state of hot and dense quark-gluon matter that exhibits a remarkable collective flow behavior with minimal viscous dissipation. To gain deeper insights into its intrinsic nature and fundamental degrees of freedom, we extracted the speed of sound in this medium created using lead-lead (PbPb) collisions at a center-of-mass energy per nucleon pair of 5.02 TeV. The data were recorded by the CMS experiment at the CERN LHC and correspond to an integrated luminosity of $0.607 \mathrm{nb}^{-1}$. The measurement is performed by studying the multiplicity dependence of the average transverse momentum of charged particles emitted in head-on PbPb collisions. Our findings reveal that the speed of sound in this matter is nearly half of the speed of light, with its squared value being $0.241\pm0.002 (\mathrm{stat})\pm0.016 (\mathrm{syst})$ in natural units at a medium temperature of $219\pm8(\mathrm{syst})\mathrm{MeV}$, precisely aligning with predictions from lattice quantum chromodynamic (QCD) calculations. This result provides a stringent constraint on the equation of state of the created medium and a direct evidence for a deconfined QCD phase being attained in relativistic nuclear collisions.

Extracting the speed of sound in the strongly interacting matter created in ultrarelativistic lead-lead collisions at the LHC;CMS Collaboration;2024;HEPData


Abstract: A study of the Higgs boson anomalous couplings from its production and decay using the WW channel is presented. This analysis is performed on proton-proton collision data collected with the CMS detector at the CERN LHC during 2016-2018 at a center-of-mass energy of 13 TeV, and corresponds to an integrated luminosity of 138 $fb^{-1}$. The couplings of the Higgs boson to vector bosons are studied including $CP$-violation effects.The different-flavor dilepton ($e\mu$) final state is analysed, with dedicated categories targeting gluon fusion, electroweak vector boson fusion, and associated production with a W or Z boson. Kinematic information from associated jets is combined using matrix element techniques to increase the sensitivity to anomalous effects at the production vertex. A simultaneous measurement of four Higgs boson couplings to electroweak vector bosons is performed in the framework of a standard model effective field theory. All measurements are consistent with the expectations for the standard model Higgs boson and constraints are set on the fractional contribution of the anomalous couplings to the Higgs boson production cross section.

Constraints on anomalous Higgs boson couplings from its production and decay using the WW channel in proton-proton collisions at $\sqrt{s}$ = 13 TeV;CMS Collaboration;2024;HEPData


Abstract: A test of lepton flavor universality in $\text{B}^\pm \to\text{K}^\pm\mu^+\mu^-$ and $\text{B}^\pm \to\text{K}^\pm\text{e}^+\text{e}^-$ decays, as well as a measurement of differential and integrated branching fractions of a nonresonant$\text{B}^\pm \to \text{K}^\pm\mu^+\mu^-$ decay are presented. The analysis is made possible by a dedicated data set of proton-proton collisions at $\sqrt{s} = 13$ TeV recorded in 2018, by the CMS experiment at the LHC, using a special high-rate data stream designed for collecting about 10 billion unbiased b hadron decays. The ratio of the branching fractions $\mathcal{B}(\text{B}^\pm \to\text{K}^\pm\mu^+\mu^-)$ to $\mathcal{B}(\text{B}^\pm \to\text{K}^\pm\text{e}^+\text{e}^-)$ is determined from the measured double ratio $R(\text{K})$ of these decays to the respective branching fractions of the $\text{B}^\pm\to\text{J}\psi\text{K}^\pm$ with $\text{J}\psi\to\mu^+\mu^-$ and $\text{e}^+\text{e}^-$ decays, which allow for significant cancellation of systematic uncertainties. The ratio $R(\text{K})$ is measured in the range $1.1

Test of lepton flavor universality in B$^{\pm}$$\to$ K$^{\pm}\mu^+\mu^-$ and B$^{\pm}$$\to$ K$^{\pm}$e$^+$e$^-$ decays in proton-proton collisions at $\sqrt{s}$ = 13 TeV;CMS Collaboration;2024;HEPData


Abstract: The inclusive jet cross section is measured as a function of jet transverse momentum $p_T$ and rapidity $y$. The measurement is performed using proton-proton collision data at $\sqrt{s} = 5.02$ TeV, recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of 27.4 pb$^{-1}$. The jets are reconstructed with the anti-$k_{\rm T}$ algorithm using a distance parameter of $R=0.4$, within the rapidity interval $|y| < 2$, and across the kinematic range $0.06 < $p_T$ < 1$ TeV. The jet cross section is unfolded from detector to particle level using the determined jet response and resolution. The results are compared to predictions of perturbative quantum chromodynamics, calculated at both next-to-leading order and next-to-next-to-leading order. The predictions are corrected for nonperturbative effects, and presented for a variety of parton distribution functions and choices of the renormalization/factorization scales and the strong coupling $\alpha_{\rm S}$.

Measurement of the double-differential inclusive jet cross section in proton-proton collisions at $\sqrt{s}$ = 5.02 TeV;CMS Collaboration;2024;HEPData


Abstract: No data abstract available.

Search for pair production of scalar and vector leptoquarks decaying to muons and bottom quarks in proton-proton collisions at $\sqrt{s}$ = 13 TeV;CMS Collaboration;2024;HEPData


Abstract: A measurement of the dijet production cross section is reported based on proton-proton collision data collected in 2016 at $\sqrt{s}$ = 13 TeV by the CMS experiment at the CERN LHC, corresponding to an integrated luminosity of up to 36.3 fb$^{-1}$. Jets are reconstructed with the anti-$k_\text{T}$ algorithm for distance parameters of $R$ = 0.4 and 0.8. Cross sections are measured double-differentially (2D) as a function of the largest absolute rapidity $\left| y \right|_\text{max}$ of the two jets with the highest transverse momenta $p_\text{T}$ and their invariant mass $m_{1,2}$, and triple-differentially (3D) as a function of the rapidity separation $y^{*}$, the total boost $y_\text{b}$, and either $m_{1,2}$ or the average $p_\text{T}$ of the two jets. The cross sections are unfolded to correct for detector effects and are compared with fixed-order calculations derived at next-to-next-to-leading order in perturbative quantum chromodynamics. The impact of the measurements on the parton distribution functions and the strong coupling constant at the mass of the Z boson is investigated, yielding a value of $\alpha_\text{s}(m_\text{Z})=0.1179\pm0.0019$.

Measurement of multidifferential cross sections for dijet production in proton-proton collisions at $\sqrt{s}$ = 13 TeV;CMS Collaboration;2024;HEPData


Abstract: No data abstract available.

Search for heavy neutral leptons in final states with electrons, muons, and hadronically decaying tau leptons in proton-proton collisions at $\sqrt{s}$ =13 TeV;CMS Collaboration;2024;HEPData


Abstract: No data abstract available.

Search for new resonances decaying to pairs of merged diphotons in proton-proton collisions at $\sqrt{s}$ = 13 TeV;CMS Collaboration;2024;HEPData


Abstract: The transverse momentum ($p_T$) and centrality dependence of the nuclear modification factor $R_{AA}$ of prompt and non-prompt J/$\psi$, the latter originating from the weak decays of beauty hadrons, have been measured by the ALICE collaboration in Pb--Pb collisions at 5.02 TeV. The measurements are carried out through the e^+e^- decay channel at midrapidity ($|y| < 0.9$) in the transverse momentum region $1.5 < $p_T$ < 10$~\GeVc. Both prompt and non-prompt J/$\psi$ measurements indicate a significant suppression for $p_T$ $>$ 5~\GeVc, which becomes stronger with increasing collision centrality. The results are consistent with similar LHC measurements in the overlapping $p_T$ intervals, and cover the kinematic region down to $p_T$ = 1.5 \GeVc at midrapidity, not accessible by other LHC experiments. The suppression of prompt J/$\psi$ in central and semicentral collisions exhibits a decreasing trend towards lower transverse momentum, described within uncertainties by models implementing J/$\psi$ production from recombination of c and $\overline{\rm c}$ quarks produced independently in different partonic scatterings. At high transverse momentum, transport models including quarkonium dissociation are able to describe the suppression for prompt J/$\psi$. For non-prompt J/$\psi$, the suppression predicted by models including both collisional and radiative processes for the computation of the beauty-quark energy loss inside the quark--gluon plasma is consistent with measurements within uncertainties.

Prompt and non-prompt J$/\psi$ production at midrapidity in Pb$-$Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV;ALICE Collaboration;2024;HEPData


Abstract: A search for heavy neutral leptons (HNLs) decaying in the CMS muon system is presented. A data sample is used corresponding to an integrated luminosity of 138\fbinv of proton-proton collisions at $\sqrt{s}=13\TeV$, recorded at the CERN LHC in 2016--2018. Decay products of long-lived HNLs could interact with the shielding materials in the CMS muon system and create hadronic and electromagnetic showers detected in the muon chambers. This distinctive signature provides a unique handle to search for HNLs with masses below 4\GeV and proper decay lengths of the order of meters. The signature is sensitive to HNL couplings to all three generations of leptons. Candidate events are required to contain a prompt electron or muon originating from a vertex on the beam axis and a displaced shower in the muon chambers. No significant deviations from the standard model background expectation are observed. In the electron (muon) channel, the most stringent limits to date are set for HNLs in the mass range of 2.1--3.0 (1.9--3.3)\GeV, reaching mixing matrix element squared values as low as $8.6\,(4.6) \times10^{-6}$.

Search for long-lived heavy neutral leptons decaying in the CMS muon detectors in proton-proton collisions at $\sqrt{s}$ = 13 TeV;CMS Collaboration;2024;HEPData


Abstract: Femtoscopic correlations of identical charged pions and kaons in pp collisions at \sqrt{s} = 13 TeV with event-shape selection

Femtoscopic correlations of identical charged pions and kaons in pp collisions at $\sqrt{s}=13$ TeV with event-shape selection;ALICE Collaboration;2024;HEPData


Abstract: First measurement of the |t|-dependence of incoherent J/Psi photonuclear production

First measurement of the $|t|$-dependence of incoherent J/$\psi$ photonuclear production;ALICE Collaboration;2024;HEPData


Abstract: No data abstract available.

Searches for Higgs Boson Production through Decays of Heavy Resonances;CMS Collaboration;2024;HEPData


Abstract: A search for ZZ and ZH production in the bbbb final state is presented, where H is the standard model (SM) Higgs boson. The search uses an event sample of proton-proton collisions corresponding to an integrated luminosity of 133 fb^(-1) collected at a center-of-mass energy of 13 TeV with the CMS detector at the CERN LHC. The analysis introduces several novel techniques for deriving and validating a multi-dimensional background model based on control samples in data. A multiclass multivariate classifier customized for the bbbb final state is developed to derive the background model and extract the signal. The data are found to be consistent, within uncertainties, with the SM predictions. The observed (expected) upper limits at 95% confidence level are found to be 3.8 (3.8) and 5.0 (2.9) times the SM prediction for the ZZ and ZH production cross sections, respectively.

Search for ZZ and ZH production in the $\mathrm{b\bar{b}b\bar{b}}$ final state using proton-proton collisions at $\sqrt{s}$ = 13 TeV;CMS Collaboration;2024;HEPData


Abstract: A search is presented for the resonant production of a pair of the standard model-like Higgs bosons using data from proton-proton collisions at a centre-of-mass energy of 13 TeV, collected by the CMS experiment at the CERN LHC in 2016--2018, corresponding to an integrated luminosity of 138 $\mathrm{fb}^{-1}$. The final state consists of two b quark-antiquark pairs. The search is conducted in the region of phase space where at least one of the pairs is highly Lorentz-boosted and is reconstructed as a single large-area jet. The other pair may be either similarly merged or resolved, the latter reconstructed using two b-tagged jets. The data is found to be consistent with the measured standard model processes and are interpreted as 95% confidence level upper limits on the product of the cross sections and the branching fractions of the spin-0 radion and the spin-2 bulk graviton in warped extradimensional models. The limits set are in the range 9.74--0.29 fb and 4.94--0.19 fb for a narrow radion and a graviton, respectively, with a mass between 1 and 3 TeV. For a 10%-width radion and a bulk graviton, the limits are in the range 12.5--0.35 fb and 8.23--0.23 fb, respectively, for the same masses. These limits result in the exclusion of the narrow-width graviton with a mass below 1.2 TeV, and of the narrow and 10%-width radion with masses below 2.6 TeV, and 2.8 TeV, respectively, an improvement of $\approx$1 TeV over the previous CMS measurement.

Search for resonant pair production of Higgs bosons in the $\mathrm{b\bar{b}b\bar{b}}$ final state using large-area jets in proton-proton collisions at $\sqrt{s}$ = 13 TeV;CMS Collaboration;2024;HEPData


Abstract: No data abstract available.

Search for $CP$ violation in D$^0$$\to$ K$^0_\mathrm{S}$K$^0_\mathrm{S}$ decays in proton-proton collisions at $\sqrt{s}$ = 13 TeV;CMS Collaboration;2024;HEPData