Abstract: Measurement of electrons from semileptonic heavy-flavour hadron decays3at mid-rapidity in pp and Pb–Pb collisions at 5.02TeV

Measurement of electrons from semileptonic heavy-flavour hadron decays at midrapidity in pp and Pb-Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 5.02 TeV;ALICE Collaboration;2020;HEPData


Abstract: Measurements of the W boson rapidity, helicity, double-differential cross sections, and charge asymmetry in pp collisions at $\sqrt{s} =$ 13 TeV. Tables for relevant figures in paper are reported here, along with the list of expected and observed postfit values and uncertainties for nuisance parameters (NPs). The full covariance matrices among parameters of interest (POIs) and NPs are included as additional resources, along with the complete lists of observed postfit values and uncertainties for POIs and NPs corresponding to each matrix.

Measurements of the W boson rapidity, helicity, double-differential cross sections, and charge asymmetry in pp collisions at $\sqrt{s} =$ 13 TeV;CMS Collaboration;2021;HEPData


Abstract: CERN-LHC. The fiducial cross section for Y(1S) pair production in proton-proton collisions at a center-of-mass energy of 13 TeV in the region where both Y(1S) mesons have an absolute rapidity below 2.0 is measured to be 79 \pm 11 (stat) \pm 6 (syst) \pm 3 (B) pb assuming the mesons are produced unpolarized. The last uncertainty corresponds to the uncertainty in the Y(1S) meson dimuon branching fraction. The measurement is performed in the final state with four muons using proton-proton collision data collected in 2016 by the CMS experiment at the LHC, corresponding to an integrated luminosity of 35.9fb-1. This process serves as a standard model reference in a search for narrow resonances decaying to Y(1S)mu+mu- in the same final state. Such a resonance could indicate the existence of a tetraquark that is a bound state of two b quarks and two b antiquarks. The tetraquark search is performed for masses in the vicinity of four times the bottom quark mass, between 17.5 and 19.5 GeV, while a generic search for other resonances is performed for masses between 16.5 and 27 GeV. No significant excess of events compatible with a narrow resonance is observed in the data. Limits on the production cross section times branching fraction to four muons via an intermediate Y(1S) resonance are set as a function of the resonance mass.

Measurement of the $\Upsilon$(1S) pair production cross section and search for resonances decaying to $\Upsilon$(1S)$\mu^+\mu^-$ in proton-proton collisions at $\sqrt{s}=$ 13 TeV;CMS Collaboration;2020;HEPData


Abstract: Measurements of production cross sections of WZ and same-sign $W^\pm W^\pm$ boson pairs in association with two jets in proton-proton collisions at $\sqrt{s}$=13TeV at the LHC are reported. The data sample corresponds to an integrated luminosity of 137$fb^{-1}$, collected with the CMS detector during 2016--2018. The measurements are performed in the leptonic decay modes $W^\pm Z \to \ell^\pm\nu\ell'^\pm\ell'^\mp$ and $W^\pm W^\pm \to \ell^\pm\nu\ell'^\pm\nu$, where $\ell, \ell' = e$, $\mu$. Differential fiducial cross sections as functions of the invariant masses of the jet and charged lepton pairs, as well as of the leading-lepton transverse momentum, are measured for WW production and are consistent with the standard model predictions. The dependence of differential cross sections on the invariant mass of the jet pair is also measured for WZ production. An observation of electroweak production of WZ boson pairs is reported with an observed (expected) significance of 6.8 (5.3) standard deviations. Constraints are obtained on the structure of quartic vector boson interactions in the framework of effective field theory.

Measurements of production cross sections of WZ and same-sign WW boson pairs in association with two jets in proton-proton collisions at $\sqrt{s} =$ 13 TeV;CMS Collaboration;2022;HEPData


Abstract: Measurements are presented of the single-diffractive dijet cross section and the diffractive cross section as a function of the proton fractional momentum loss $\xi$ and the four-momentum transfer squared $t$. Both processes $\mathrm{pp} \to \mathrm{pX}$ and $\mathrm{pp} \to \mathrm{Xp}$, i.e. with the proton scattering to either side of the interaction point, are measured, where $\mathrm{X}$ includes at least two jets; the results of the two processes are averaged. The analyses are based on data collected simultaneously with the CMS and TOTEM detectors at the LHC in proton-proton collisions at $\sqrt{s} = 8\,\mathrm{TeV}$ during a dedicated run with $\beta^{\ast} = 90\,\mathrm{m}$ at low instantaneous luminosity and correspond to an integrated luminosity of $37.5\,\mathrm{nb}^{-1}$. The single-diffractive dijet cross section $\sigma^{\mathrm{pX}}_{\mathrm{jj}}$, in the kinematic region $\xi < 0.1$, $0.03 < \lvert t \rvert < 1\,\mathrm{GeV}^2$, with at least two jets with transverse momentum $p_{\mathrm{T}} > 40\,\mathrm{GeV}$, and pseudorapidity $\lvert \eta \rvert < 4.4$, is $21.7 \pm 0.9\,\text{(stat)} \,^{+3.0}_{-3.3}\,\text{(syst)} \pm 0.9\,\text{(lumi)} \,\mathrm{nb}$. The ratio of the single-diffractive to inclusive dijet yields, normalised per unit of $\xi$, is presented as a function of $x$, the longitudinal momentum fraction of the proton carried by the struck parton. The ratio in the kinematic region defined above, for $x$ values in the range $-2.9 \leq \log_{10} x \leq -1.6$, is $R = (\sigma^{\mathrm{pX}}_{\mathrm{jj}}/\Delta\xi)/\sigma_{\mathrm{jj}} = 0.025 \pm 0.001\,\text{(stat)} \pm 0.003\,\text{(syst)}$, where $\sigma^{\mathrm{pX}}_{\mathrm{jj}}$ and $\sigma_{\mathrm{jj}}$ are the single-diffractive and inclusive dijet cross sections, respectively. The results are compared with predictions from models of diffractive and nondiffractive interactions. Monte Carlo predictions based on the HERA diffractive parton distribution functions agree well with the data when corrected for the effect of soft rescattering between the spectator partons.

Measurement of single-diffractive dijet production in proton-proton collisions at $\sqrt{s} =$ 8 TeV with the CMS and TOTEM experiments;CMS Collaboration;2020;HEPData


Abstract: A search is conducted for a low-mass charged Higgs boson produced in a top quark decay and subsequently decaying into a charm and a strange quark. The data sample was recorded in proton-proton collisions at $\sqrt{s}=13 TeV$ by the CMS experiment at the LHC and corresponds to an integrated luminosity of 35.9/fb. The search is performed in the process of top quark pair production, where one top quark decays to a bottom quark and a charged Higgs boson, and the other to a bottom quark and a W boson. With the W boson decaying to a charged lepton (electron or muon) and a neutrino, the final state comprises an isolated lepton, missing transverse momentum, and at least four jets, of which two are tagged as b jets. To enhance the search sensitivity, one of the jets originating from the charged Higgs boson is required to satisfy a charm tagging selection. No significant excess beyond standard model predictions is found in the dijet invariant mass distribution. An upper limit in the range 1.68--0.25% is set on the branching fraction of the top quark decay to the charged Higgs boson and bottom quark for a charged Higgs boson mass between 80 and 160 GeV.

Search for a light charged Higgs boson in the H$^\pm$ $\to $ cs channel in proton-proton collisions at $\sqrt{s} =$ 13 TeV;CMS Collaboration;2020;HEPData


Abstract: A measurement of the W W boson pair production cross section in proton-proton collisions at $\sqrt{s}$ = 13 TeV is presented. The data used in this study were collected with the CMS detector at the LHC and correspond to an integrated luminosity of 35.9 fb$^{-1}$. The W$^+$ W$^-$ candidate events are selected by first requiring two oppositely-charged leptons (electrons or muons). Two methods for reducing background contributions are employed. In the first one, a sequence of requirements on kinematic quantities is applied allowing a measurement of the total cross section: 117.6 +/- 6.8 pb which agrees well with the theoretical cross section. Fiducial cross sections are also reported for events with zero jets or one jet, and the change in the zero-jet fiducial cross sec- tion with the jet $p_T$ threshold is measured. Normalized differential cross sections are reported within the fiducial region; these are compared to theoretical predictions based on quantum chromodynamics at next-to-next-to-leading-order accuracy. A second method for suppressing background contributions employs two random forest classifiers. The analysis based on this method includes a measurement of the total cross section and also a measurement of the normalized jet multiplicity distribution in $W$^+ W$^-$ events. Finally, a dilepton invariant mass distribution is used to probe for physics beyond the standard model in the context of an effective field theory and limits on the presence of dimension-6 operators are derived.

W$^+$W$^-$ boson pair production in proton-proton collisions at $\sqrt{s} =$ 13 TeV;CMS Collaboration;2021;HEPData


Abstract: The global polarization of the $\Lambda$ and $\overline\Lambda$ hyperons is measured for Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ and $5.02$~TeV recorded with the ALICE at the LHC. The results are reported differentially as a function of collision centrality and hyperon's transverse momentum ($p_{\mathrm{T}}$) for the range of centrality 5-50\%, $0.5 < p_{\mathrm{T}}<5$~GeV/$c$, and rapidity $|y|<0.5$. The hyperon global polarization averaged for Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ and $5.02$~TeV is found to be consistent with zero, $\langle P_{\mathrm{H}}\rangle(\%)\approx 0.01\pm 0.06~(stat.) \pm 0.03~(syst.)$ in the collision centrality range 15-50\%, where the largest signal is expected. The results are compatible with expectations based on an extrapolation from measurements at lower collision energies at RHIC, hydrodynamical model calculations, and empirical estimates based on collision energy dependence of directed flow, all of which predict the global polarization values at LHC energies of the order of $0.01\%$.

Global polarization of $\Lambda$ and $\overline{\Lambda}$ hyperons in Pb-Pb collisions at the LHC;ALICE Collaboration;2021;HEPData


Abstract: No data abstract available.

Measurements of $\mathrm{t\bar{t}}$H production and the CP structure of the Yukawa interaction between the Higgs boson and top quark in the diphoton decay channel;CMS Collaboration;2021;HEPData


Abstract: Ratios of cross sections, $\sigma(Z+\text{c jets})/\sigma(Z+\text{jets})$, $\sigma(Z+\text{b jets})/\sigma(Z+\text{jets})$, and $\sigma(Z+\text{c jets})/\sigma(Z+\text{b jets})$ in the associated production of a Z boson with at least one charm or bottom quark jet are measured in proton-proton collisions at $\sqrt s=13$ TeV. The data sample, collected by the CMS experiment at the CERN LHC, corresponds to an integrated luminosity of 35.9 $fb^{-1}$, with a fiducial volume of $p_T>30$ GeV and $|\eta|<2.4$ for the jets, where $p_T$ and $\eta$ represent transverse momentum and pseudorapidity, respectively. The Z boson candidates come from leptonic decays into electrons or muons with $p_T>25$ GeV and $|\eta|<2.4$, and the dilepton mass satisfies $71

Measurement of the associated production of a Z boson with charm or bottom quark jets in proton-proton collisions at $\sqrt{s}=$ 13 TeV;CMS Collaboration;2020;HEPData


Abstract: Measurement of electrons from semileptonic heavy-flavour hadron decays at mid-rapidity in p--Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ $\mathrm{=}$ 5.02 TeV

Measurement of electrons from heavy-flavour hadron decays as a function of multiplicity in p-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV;ALICE Collaboration;2020;HEPData


Abstract: This article reports measurements characterizing the Underlying Event (UE) associated with hard scatterings at mid-rapidity ($|\\eta| <$ 0.8) in pp collisions at $\\sqrt{s} =$ 13 TeV. The hard scatterings are identified by the leading particle, the charged particle with the highest transverse momentum ($p_{T}^{leading}$) in the event. Charged-particle numbers and summed transverse-momentum densities are measured in different azimuthal regions defined with respect to the leading particle direction: Toward, Transverse, and Away. The Toward and Away regions contain the fragmentation products of the hard scatterings in addition to the UE contribution, whereas particles in the Transverse region are expected to originate predominantly from the UE. The study is performed as a function of $p_{T}^{leading}$ with three different $p_{T}$ thresholds for the associated particles, $p_{T}^{track} >$ 0.15, 0.5, and 1.0 GeV/$c$.

Underlying Event properties in pp collisions at $\sqrt{s}$ = 13 TeV;ALICE Collaboration;2020;HEPData


Abstract: No data abstract available.

Production of (anti-)$^3$He and (anti-)$^3$H in p-Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 5.02 TeV;ALICE Collaboration;2020;HEPData


Abstract: CERN-LHC-CMS. Observation of the B0s to X(3872) phi decay.

Observation of the B$^0_\mathrm{s}$ $\to$ X(3872)$\phi$ decay;CMS Collaboration;2020;HEPData


Abstract: The first direct, model-independent measurement is presented of the modulus of the Cabibbo--Kobayashi--Maskawa (CKM) matrix elements $|V_{tb}|$, $|V_{td}|$, and $|V_{ts}|$, in final states enriched in single top quark $t$-channel events. The analysis uses proton-proton collision data from the LHC, collected during 2016 by the CMS experiment, at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of $35.9 fb^{-1}$. Processes directly sensitive to these matrix elements are considered at both the production and decay vertices of the top quark. In the standard model hypothesis of CKM unitarity, a lower limit of $|V_{tb}| > 0.970$ is measured at the $95\%$ confidence level. Several theories beyond the standard model are considered, and by releasing all constraints among the involved parameters, the values $|V_{tb}| = 0.988 \pm 0.024 $, and $|V_{td}|^2 +|V_{ts}|^2 = 0.06 \pm 0.06$, where the uncertainties include both statistical and systematic components, are measured.

Measurement of CKM matrix elements in single top quark $t$-channel production in proton-proton collisions at $\sqrt{s} = $ 13 TeV;CMS Collaboration;2020;HEPData


Abstract: The measurement of the azimuthal-correlation function of prompt D mesons with charged particles in pp collisions at $\sqrt{s}=5.02$ TeV and p-Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV with the ALICE detector at the LHC is reported. The D$^0$, D$^+$, and D$^{*+}$ mesons, together with their charge conjugates, were reconstructed at midrapidity in the transverse momentum interval $3 < p_{\rm T} < 24$ GeV/c and correlated with charged particles having $p_{\rm T} > 0.3$ GeV/c and pseudorapidity $|\eta| < 0.8$. The properties of the correlation peaks appearing in the near- and away-side regions (for $\Delta\varphi \approx 0$ and $\Delta\varphi \approx \pi$, respectively) were extracted via a fit to the azimuthal correlation functions. The shape of the correlation functions and the near- and away-side peak features are found to be consistent in pp and p-Pb collisions, showing no modifications due to nuclear effects within uncertainties. The results are compared with predictions from Monte Carlo simulations performed with the PYTHIA, POWHEG+PYTHIA, HERWIG, and EPOS 3 event generators.

Azimuthal correlations of prompt D mesons with charged particles in pp and p-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV;ALICE Collaboration;2020;HEPData


Abstract: No data abstract available.

Coherent photoproduction of $\rho^{0}$ vector mesons in ultra-peripheral Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV;ALICE Collaboration;2020;HEPData


Abstract: No description provided.

Observation of B$^0_s$ mesons and measurement of the B$^0_s$/B$^+$ yield ratio in PbPb collisions at $\sqrt{s_\mathrm{NN}}$ = 5.02 TeV;CMS Collaboration;2021;HEPData


Abstract: The first measurement of the dependence of $\gamma\gamma \to \mu^{+}\mu^{-}$ production on the multiplicity of neutrons emitted very close to the beam direction in ultraperipheral heavy ion collisions is reported. Data for lead-lead interactions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV, with an integrated luminosity of approximately 1.5 nb$^{-1}$, were collected using the CMS detector at the LHC. The azimuthal correlations between the two muons in the invariant mass region $8 < m_{\mu\mu} < 60$ GeV are extracted for events including zero, one, or at least two neutrons detected in the forward pseudorapidity range $|{\eta}| > 8.3$. The back-to-back correlation structure from leading-order photon-photon scattering is found to be significantly broader for events with a larger number of emitted neutrons from each nucleus, corresponding to interactions with a smaller impact parameter. This observation provides a data-driven demonstration that the average transverse momentum of photons emitted from relativistic heavy ions has an impact parameter dependence. These results provide new constraints on models of photon-induced interactions in ultraperipheral collisions. They also provide a baseline to search for possible final-state effects on lepton pairs caused by traversing a quark-gluon plasma produced in hadronic heavy ion collisions.

Observation of forward neutron multiplicity dependence of dimuon acoplanarity in ultraperipheral PbPb collisions at $\sqrt{s_\mathrm{NN}} =$ 5.02 TeV;CMS Collaboration;2021;HEPData


Abstract: CERN-LHC-CMS. Azimuthal correlations within exclusive dijets with largemomentum transfer in photon-lead collisions.

Azimuthal correlations within exclusive dijets with large momentum transfer in photon-lead collisions;CMS Collaboration;2022;HEPData


Abstract: No description provided.

Dependence of inclusive jet production on the anti-$k_\mathrm{T}$ distance parameter in pp collisions at $\sqrt{s} =$ 13 TeV;CMS Collaboration;2020;HEPData


Abstract: CERN-LHC. Measurement of the cross section for electroweak production and constraints on anomalous quartic couplings from events with a W boson and a photon in association with two jets in proton-proton collisions at sqrt(s) = 13 TeV. The W boson candidates are selected through their decay into a electron or muon and corresponding neutrino. The process of interest, electroweak W gamma jj production, is isolated by selecting events with a large dijet mass and a large pseudorapidity gap between the two jets. The measurement is based on data collected with the CMS detector in 2016 at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb−1. The observed significance of the signal is 4.9 standard deviations, where a significance of 4.6 standard deviations is expected in the standard model predictions. The results are combined with previously published CMS results based on sqrt(s)=8 TeV data, which leads to an observed (expected) significance of 5.3 (4.8) standard deviations. The measured value of the fiducial cross section for the signal is reported. Bounds are given on quartic vector boson interactions in the framework of dimension-8 effective field theory operators at 95% confidence level.

Observation of electroweak production of W$\gamma$ with two jets in proton-proton collisions at $\sqrt{s}= $ 13 TeV;CMS Collaboration;2021;HEPData


Abstract: CERN-LHC. Experimental results are presented on event-by-event net-proton fluctuation measurements in Pb--Pb collisions at $\sqrt{s_{\mathrm {NN}}} = 2.76$~TeV, recorded by the ALICE detector at the CERN LHC. These measurements have as their ultimate goal an experimental test of Lattice QCD (LQCD) predictions on second and higher order cumulants of net-baryon distributions to search for critical behavior near the QCD phase boundary. Before confronting them with LQCD predictions, account has to be taken of correlations stemming from baryon number conservation as well as fluctuations of participating nucleons. Both effects influence the experimental measurements and are usually not considered in theoretical calculations. For the first time, it is shown that event-by-event baryon number conservation leads to subtle long-range correlations arising from very early interactions in the collisions.

Global baryon number conservation encoded in net-proton fluctuations measured in Pb–Pb collisions at sNN=2.76 TeV;ALICE Collaboration;2020;HEPData


Abstract: A search is presented for long-lived charged particles that decay within the volume of the silicon tracker of the CMS experiment. Such particles can produce events with an isolated track that is missing hits in the outermost layers of the silicon tracker, and is also associated with little energy deposited in the calorimeters and no hits in the muon detectors. The search for events with this "disappearing track" signature is performed in a sample of proton-proton collisions recorded by the CMS experiment at the LHC with a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of $101\text{fb}^{-1}$ recorded in 2017 and 2018. The observation of $48$ events is consistent with the estimated background of $47.8 \, _{-2.3}^{+2.7} \, (\text{stat}) \pm 8.1 \, (\text{syst})$ events. Upper limits are set on chargino production in the context of an anomaly-mediated supersymmetry breaking model for purely wino and higgsino neutralino scenarios. At $95\%$ confidence level, the first constraint is placed on chargino masses in the higgsino case, excluding below $750$ ($175$) GeV for a lifetime of $3$ ($0.05$) ns. In the wino case, the results of this search are combined with a previous CMS search to produce a result representing the complete LHC data set recorded in 2015-2018, the most stringent constraints to date. At $95\%$ confidence level, chargino masses in the wino case are excluded below $884$ ($474$) GeV for a lifetime of $3$ ($0.2$) ns.

Search for disappearing tracks in proton-proton collisions at $\sqrt{s} =$ 13 TeV;CMS Collaboration;2020;HEPData


Abstract:
CERN LHC. A search for the electroweak (EW) production of two Z bosons in association with 2 jets (j) and constraints on anomalous quartic gauge couplings are presented. The analysis is based on a data sample of proton-proton collisions at √s= 13 TeV collected with the CMS detector in 2016-2018 and corresponding to an integrated luminosity of 137.1 fb−1. The search is performed in the fully leptonic final state where the two Z bosons decay to either a pair of electrons or a pair of muons.
 The inclusive fiducial region is defined as:
 pt(l) > 20,10,5,5 GeV, |eta(l)|< 2.5
 60 < m(ll)< 120 GeV, m(4l)>180 GeV
 pT(j) > 30 GeV, |eta(j)| < 4.7
 m(jj) > 100 GeV and DeltaR(l,j)>0.4.
 The VBS-enriched loose selection additionally requires:
 m(jj) > 400 GeV and DeltaEta(jj)>2.4.
 The VBS-enriched tight selection additionally requires:
 m(jj) > 1 TeV and DeltaEta(jj)>2.4.

Evidence for electroweak production of four charged leptons and two jets in proton-proton collisions at $\sqrt{s} =$ 13 TeV;CMS Collaboration;2020;HEPData


Abstract: CERN-LHC-CMS. Measurement of the top quark forward-backward production asymmetry and the anomalous chromoelectric and chromomagnetic moments in pp collisions at sqrt(s)=13 TeV.

Measurement of the top quark forward-backward production asymmetry and the anomalous chromoelectric and chromomagnetic moments in pp collisions at $\sqrt{s} =$ 13 TeV;CMS Collaboration;2020;HEPData


Abstract: Measurement of directed flow of D meson and charged hadrons in Pb–Pb collisions at 5.02TeV

Probing the effects of strong electromagnetic fields with charge-dependent directed flow in Pb-Pb collisions at the LHC;ALICE Collaboration;2020;HEPData


Abstract: CERN-LHC-CMS. Investigation into the event-activity dependence of Υ(nS) relative production in proton-proton collisions at √s = 7 TeV.

Investigation into the event-activity dependence of $\Upsilon$(nS) relative production in proton-proton collisions at $\sqrt{s} = $ 7 TeV;CMS Collaboration;2022;HEPData


Abstract: Comprehensive results on the production of unidentified charged particles, $\pi^{\pm}$, K$^{\pm}$, K$^{0}_{\text{s}}$, K*(892)$^{0}$, p, $\bar{\text{p}}$, $\phi$(1020), $\Lambda$, $\bar{\Lambda}$, $\Xi^{-}$, $\bar{\Xi}^{+}$, $\Omega^{-}$ and $\bar{\Omega}^{+}$ hadrons in proton-proton (pp) collisions at $\sqrt{s}$ = 7 TeV at midrapidity ($|y| < 0.5$) as a function of charged-particle multiplicity density are presented. In order to avoid auto-correlation biases, the actual transverse momentum ($p_{\text{T}}$) spectra of the particles under study and the event activity are measured in different rapidity windows. In the highest multiplicity class, the charged-particle density reaches about 3.5 times the value measured in inelastic collisions. While the yield of protons normalized to pions remains approximately constant as a function of multiplicity, the corresponding ratios of strange hadrons to pions show a significant enhancement that increases with increasing strangeness content. Furthermore, all identified particle to pion ratios are shown to depend solely on charged-particle multiplicity density, regardless of system type and collision energy. The evolution of the spectral shapes with multiplicity and hadron mass shows patterns that are similar to those observed in p-Pb and Pb--Pb collisions at LHC energies. The obtained \pt\ distributions and yields are compared to expectations from QCD-based pp event generators as well as to predictions from thermal and hydrodynamic models. These comparisons indicate that traces of a collective, equilibrated system are already present in high-multiplicity pp collisions.

Multiplicity dependence of light-flavor hadron production in pp collisions at $\sqrt{s}$ = 7 TeV;ALICE Collaboration;2019;HEPData


Abstract: The first measurements of anisotropic flow coefficients vn for mid-rapidity charged particles in Xe--Xe 5.44 TeV are presented. Comparing these measurements to those from Pb-Pb 2.76 TeV, v2 is found to be suppressed for mid-central collisions at the same centrality, and enhanced for central collisions. The values of v3 are generally larger in Xe--Xe than in Pb--Pb at a given centrality. These observations are consistent with expectations from hydrodynamic predictions. When both v2 and v3 are divided by their corresponding eccentricities for a variety of initial state models, they generally scale with transverse density when comparing Xe--Xe and Pb--Pb, with some deviations observed in central Xe--Xe and Pb--Pb collisions. These results assist in placing strong constraints on both the initial state geometry and medium response for relativistic heavy-ion collisions.

Anisotropic flow in Xe-Xe collisions at $\mathbf{\sqrt{s_{\rm{NN}}} = 5.44}$ TeV;ALICE Collaboration;2018;HEPData


Abstract: CERN-LHC. The production yield of the $\Lambda$(1520) baryon resonance is measured at mid-rapidity in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV with the ALICE detector at the LHC. The measurement is performed in the $\Lambda$(1520) $\to$ p K$^{-}$ (and charge conjugate) hadronic decay channel as a function of the transverse momentum ($p_{\rm T}$) and collision centrality. The $p_{\rm T}$-integrated production rate of $\Lambda$(1520) relative to $\Lambda$ in central collisions is suppressed by about a factor of 2 with respect to peripheral collisions. This is the first observation of the suppression of a baryonic resonance at LHC and the first evidence of $\Lambda$(1520) suppression in heavy-ion collisions. The measured $\Lambda$(1520)/$\Lambda$ ratio in central collisions is smaller than the value predicted by the statistical hadronisation model calculations. The shape of the measured $p_{\rm T}$ distribution and the centrality dependence of the suppression are reproduced by the EPOS3 Monte Carlo event generator. The measurement adds further support to the formation of a dense hadronic phase in the final stages of the evolution of the fireball created in heavy-ion collisions, lasting long enough to cause a significant reduction in the observable yield of short-lived resonances.

Suppression of $\Lambda(1520)$ resonance production in central Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV;ALICE Collaboration;2018;HEPData


Abstract: The production of $\rho^{0}$ mesons is measured with the ALICE detector in pp and Pb-Pb collisions at the centre-of-mass energy per nucleon pair, $\sqrt{s_{\rm NN}}$ = 2.76 TeV. The yields of $\rho^{0}$ for rapidity $|y|<0.5$ are presented as a function of transverse momentum ($p_{\rm T}$). The $p_{\rm T}$-integrated and $p_{\rm T}$-differential particle ratios $\rho^{0}/\pi$ are obtained in pp and Pb--Pb collisions. The nuclear modification factors $R_{\rm AA}$ are computed using a proton-proton reference at $\sqrt{s} = 2.76$ TeV.

Production of the $\rho$(770)${^{0}}$ meson in pp and Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV;ALICE Collaboration;2019;HEPData


Abstract: A search is presented for a singly produced third-generation scalar leptoquark decaying to a tau lepton and a bottom quark. Associated production of a leptoquark and a tau lepton is considered, leading to a final state with a bottom quark and two tau leptons. The search uses proton-proton collision data at a center-of-mass energy of 13 TeV recorded with the CMS detector, corresponding to an integrated luminosity of 35.9 fb−1. Upper limits are set at 95% confidence level on the production cross section of the third-generation scalar leptoquarks as a function of their mass. From a comparison of the results with the theoretical predictions, a third-generation scalar leptoquark decaying to a tau lepton and a bottom quark, assuming unit Yukawa coupling (lambda), is excluded for masses below 740 GeV. Limits are also set on lambda of the hypothesized leptoquark as a function of its mass. Above lambda = 1.4, this result provides the best upper limit on the mass of a third-generation scalar leptoquark decaying to a tau lepton and a bottom quark.

Search for a singly produced third-generation scalar leptoquark decaying to a $\tau$ lepton and a bottom quark in proton-proton collisions at $\sqrt{s} =$ 13 TeV;CMS Collaboration;2018;HEPData


Abstract: No data abstract available.

Evidence for associated production of a Higgs boson with a top quark pair in final states with electrons, muons, and hadronically decaying $\tau$ leptons at $\sqrt{s} =$ 13 TeV;CMS Collaboration;2018;HEPData


Abstract: A search is presented for long-lived charged particles that decay within the CMS detector and produce the signature of a disappearing track. A disappearing track is an isolated track with missing hits in the outer layers of the silicon tracker, little or no energy in associated calorimeter deposits, and no associated hits in the muon detectors. This search uses data collected with the CMS detector in 2015 and 2016 from proton-proton collisions at a center-of-mass energy of 13 TeV at the LHC, corresponding to an integrated luminosity of 38.4 $\mathrm{fb}^{-1}$. The results of the search are interpreted in the context of the anomaly-mediated supersymmetry breaking model. The data are consistent with the background-only hypothesis. Limits are set on the product of the cross section for direct production of charginos and their branching fraction to a neutralino and a pion, as a function of the chargino mass and lifetime. At 95% confidence level, charginos with masses below 715 (695) GeV are excluded for a lifetime of 3 (7) ns, as are charginos with lifetimes from 0.5 to 60 ns for a mass of 505 GeV. These are the most stringent limits using a disappearing track signature on this signal model for chargino lifetimes above $\approx$0.7 ns.

Search for disappearing tracks as a signature of new long-lived particles in proton-proton collisions at $\sqrt{s} =$ 13 TeV;CMS Collaboration;2018;HEPData


Abstract: CERN-LHC. Pseudorapidity, transverse momentum, and multiplicity distributions are measured in the pseudorapidity range $|\eta| <$ 2.4 for charged particles with transverse momenta satisfying $p_\mathrm{T} >$ 0.5 GeV in proton-proton collisions at a center-of-mass energy of $\sqrt{s} =$ 13 TeV. Measurements are presented in three different event categories. The most inclusive of the categories corresponds to an inelastic pp data set, while the other two categories are exclusive subsets of the inelastic sample that are either enhanced or depleted in single diffractive dissociation events. The measurements are compared to predictions from Monte Carlo event generators used to describe high-energy hadronic interactions in collider and cosmic-ray physics.

Measurement of charged particle spectra in minimum-bias events from proton–proton collisions at $\sqrt{s}=13\,\text {TeV} $;CMS Collaboration;2018;HEPData


Abstract: A measurement of jet substructure observables is presented using $t\bar{t}$ events in the lepton+jets channel from proton-proton collisions at $\sqrt{s}=13$ TeV recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of 35.9/fb. Multiple jet substructure observables are measured for jets identified as bottom, light-quark, and gluon jets, as well as for inclusive jets (no flavor information). The results are unfolded to the particle level and compared to next-to-leading-order predictions from POWHEG interfaced with the parton shower generators PYTHIA 8 and HERWIG 7, as well as from SHERPA 2 and DIRE 2. A value of the strong coupling at the Z boson mass, $\alpha_{S}(m_{Z}) = 0.115^{+0.015}_{-0.013}$, is extracted from the substructure data at leading-order plus leading-log accuracy.

Measurement of jet substructure observables in $\mathrm{t\overline{t}}$ events from proton-proton collisions at $\sqrt{s} =$ 13TeV;CMS Collaboration;2019;HEPData


Abstract: "The elliptic ($v_2$), triangular ($v_3$), and quadrangular ($v_4$) flow coefficients of $\pi^{\pm}$, ${\rm K}^{\pm}$, ${\rm p+\overline{p}}$, ${\Lambda+\overline{\Lambda}}$, ${\rm K}^{\rm 0}_{\rm S}$, and the $\phi$-meson are measured in Pb-Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV. Results obtained with the scalar product method are reported for the rapidity range $\vert y \vert <$ 0.5 as a function of transverse momentum, $p_\text{T}$, at different collision centrality intervals between 0-70%, including ultra-central (0-1%) collisions for $\pi^{\pm}$, ${\rm K}^{\pm}$, and ${\rm p+\overline{p}}$. For $p_\text{T}<3$ GeVc, the flow coefficients exhibit a particle mass dependence. At intermediate transverse momenta ($3

Anisotropic flow of identified particles in Pb-Pb collisions at $\mathbf{\sqrt{{\textit s}_{\rm NN}}}=5.02$ TeV;ALICE Collaboration;2018;HEPData


Abstract: CERN-LHC. Inclusive J/Psi production is studied in Xe-Xe interactions at a centre-of-mass energy per nucleon pair of sqrt(s_NN) =5.44 TeV, using the ALICE detector at the CERN LHC. The J/Psi meson is reconstructed, via its decay to a muon pair, in the centre-of-mass rapidity intervals 2.5

Inclusive J/$\psi$ production in Xe-Xe collisions at $\sqrt{s_{\rm NN}}$ = 5.44 TeV;ALICE Collaboration;2018;HEPData


Abstract: CERN-LHC. The spectra and nuclear modification factor, $R_{\rm AA}$, of electron from heavy flavour hadron decays at mid-rapidity is measured in Pb--Pb collisions at 2.76 TeV with ALICE at the LHC in the transverse momentum intervals, $0.5

Measurements of low-$p_{\rm T}$ electrons from semileptonic heavy-flavour hadron decays at mid-rapidity in pp and Pb-Pb collisions at $\mathbf{\sqrt{{\it s}_\mathrm{NN}}}$ = 2.76 TeV;ALICE Collaboration;2018;HEPData


Abstract: Results are reported from a search for long-lived particles in proton-proton collisions at $\sqrt{s}$ = 13 TeV delivered by the CERN LHC and collected by the CMS experiment. The data sample, which was recorded during 2015 and 2016, corresponds to an integrated luminosity of $38.5~\textrm{fb}^{-1}$. This search uses benchmark signal models in which long-lived particles are pair-produced and each decays into two or more quarks, leading to a signal with multiple jets and two displaced vertices composed of many tracks. No events with two well-separated high-track-multiplicity vertices are observed. Upper limits are placed on models of $R$-parity violating supersymmetry in which the long-lived particles are neutralinos or gluinos decaying solely into multijet final states or top squarks decaying solely into dijet final states. For neutralino, gluino, or top squark masses between 800 and 2600 GeV and mean proper decay lengths between 1 and 40 mm, the analysis excludes cross sections above 0.3 fb at 95% confidence level. Gluino and top squark masses are excluded below 2200 and 1400 GeV, respectively, for mean proper decay lengths between 0.6 and 80 mm. A method is provided for extending the results to other models with pair-produced long-lived particles.

Search for long-lived particles with displaced vertices in multijet events in proton-proton collisions at $\sqrt{s} =$ 13 TeV;CMS Collaboration;2019;HEPData


Abstract: No data abstract available.

Jet shapes of isolated photon-tagged jets in PbPb and pp collisions at $\sqrt{s_\mathrm{NN}} =$ 5.02 TeV;CMS Collaboration;2019;HEPData


Abstract: No data abstract available.

Charged-particle nuclear modification factors in XeXe collisions at $\sqrt{s_\mathrm{NN}}$ = 5.44 TeV;CMS Collaboration;2019;HEPData


Abstract: A measurement of the elliptic flow ($v_2$) of prompt $\mathrm{J}/\psi$ mesons in high-multiplicitypPb collisions is reported using data collected by the CMS experiment at a nucleon-nucleoncenter-of-mass energy $\sqrt{s_{\mathrm{NN}}}=8.16$ TeV. Prompt $\mathrm{J}/\psi$ mesons decaying intotwo muons are reconstructed in the rapidity region in the nucleon-nucleon center-of-massframe ($y_{\mathrm{cm}}$), corresponding to either $-2.86

Observation of prompt J/$\psi$ meson elliptic flow in high-multiplicity pPb collisions at $\sqrt{s_\mathrm{NN}} =$ 8.16 TeV;CMS Collaboration;2021;HEPData


Abstract: Differential and double-differential cross sections for the production of top quark pairs in proton-proton collisions at sqrt{s} = 13 TeV are measured as a function of kinematic variables of the top quarks and the top quark-antiquark (ttbar) system. In addition, kinematic variables and multiplicities of jets associated with the ttbar production are measured. This analysis is based on data collected by the CMS experiment at the LHC in 2016 corresponding to an integrated luminosity of 35.8/fb. The measurements are performed in the lepton+jets decay channels with a single muon or electron and jets in the final state. The differential cross sections are presented at the particle level, within a phase space close to the experimental acceptance, and at the parton level in the full phase space. The results are compared to several standard model predictions that use different methods and approximations. The kinematic variables of the top quarks and the ttbar system are reasonably described in general, though none predict all the measured distributions. In particular, the transverse momentum distribution of the top quarks is more steeply falling than predicted. The kinematic distributions and multiplicities of jets are adequately modeled by certain combinations of next-to-leading-order calculations and parton shower models.

Measurement of differential cross sections for the production of top quark pairs and of additional jets in lepton+jets events from pp collisions at $\sqrt{s} =$ 13 TeV;CMS Collaboration;2019;HEPData


Abstract: No data abstract available.

Measurement of the production cross section for single top quarks in association with W bosons in proton-proton collisions at $\sqrt{s}=$ 13 TeV;CMS Collaboration;2018;HEPData


Abstract: No data abstract available.

Measurement of the top quark mass with lepton+jets final states using pp collisions at $\sqrt{s}=$ 13 TeV;CMS Collaboration;2019;HEPData


Abstract: Transverse momentum $(p_{\rm T})$ spectra of charged particles was measured at mid-pseudorapidity in Xe–Xe collisions at $\sqrt{s_{\rm NN}} = 5.44$ TeV, in the kinematic range of $0.15

Transverse momentum spectra and nuclear modification factors of charged particles in Xe-Xe collisions at $\sqrt{s_{\rm NN}}$ = 5.44 TeV;ALICE Collaboration;2018;HEPData


Abstract:
CERN-LHC.
A set of jet shapes for a small resolution parameter $R = 0.2$ was
measured at mid-rapidity for $0$-$10\%$ central Pb-Pb collisions at a centre-of-mass energy $\sqrt{\rm{s_{NN}}}$=2.76 TeV with the ALICE detector at the Large Hadron Collider (LHC).
This set of jet shapes includes the first radial moment or angularity, $g$; the momentum dispersion,
 $p_{\rm T}D$; and the difference between the leading and sub-leading
 constituent track transverse momentum, $LeSub$. These observables provide complementary information on the
 jet fragmentation and can constrain different aspects of the theoretical description of jet-medium interactions.
 The measured jet shapes are compared with PYTHIA calculations.

Medium modification of the shape of small-radius jets in central Pb-Pb collisions at $\sqrt{s_{\mathrm {NN}}} = 2.76\,\rm{TeV}$;ALICE Collaboration;2019;HEPData


Abstract: A search for a new heavy particle decaying to a pair of vector bosons (WW or WZ) is presented using data from the CMS detector corresponding to an integrated luminosity of $35.9~\mathrm{fb}^{-1}$ collected in proton-proton collisions at a centre-of-mass energy of 13 TeV in 2016. One of the bosons is required to be a W boson decaying to $e\nu$ or $\mu\nu$, while the other boson is required to be reconstructed as a single massive jet with substructure compatible with that of a highly-energetic quark pair from a W or Z boson decay. The search is performed in the resonance mass range between 1.0 and 4.5 TeV. The largest deviation from the background-only hypothesis is observed for a mass near 1.4 TeV and corresponds to a local significance of 2.5 standard deviations. The result is interpreted as an upper bound on the resonance production cross section. Comparing the excluded cross section values and the expectations from theoretical calculations in the bulk graviton and heavy vector triplet models, spin-2 WW resonances with mass smaller than 1.07 TeV and spin-1 WZ resonances lighter than 3.05 TeV, respectively, are excluded at 95% confidence level.

Search for a heavy resonance decaying to a pair of vector bosons in the lepton plus merged jet final state at $\sqrt{s} =$ 13 TeV;CMS Collaboration;2019;HEPData


Abstract: CERN-LHC-CMS. Studies of Bs*2(5840)0 and Bs1(5830)0 mesons in their decays into B(*)+K- and, for the first time, B(*)0 K0s.

Studies of B$^*_\mathrm{s2}(5840)^0$ and B$_\mathrm{s1}(5830)^0$ mesons including the observation of the B$^*_\mathrm{s2}(5840)^0\to$ B$^0$K$_\mathrm{S}^0$ decay in proton-proton collisions at $\sqrt{s}=$8 TeV;CMS Collaboration;2018;HEPData


Abstract: CERN-LHC. CMS. The angular distribution of the flavor-changing neutral current decay B+ to K+ μ+ μ- is studied in proton-proton collisions at a center-of-mass energy of 8 TeV. The analysis is based on data collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 20.5$fb^{-1}$. The forward-backward asymmetry $A_{FB}$ of the dimuon system and the contribution $F_{H}$ from the pseudoscalar, scalar, and tensor amplitudes to the decay width are measured as a function of the dimuon mass squared. The measurements are consistent with the standard model expectations.

Angular analysis of the decay B$^+$$\to$ K$^+\mu^+\mu^-$ in proton-proton collisions at $\sqrt{s} =$ 8 TeV;CMS Collaboration;2018;HEPData


Abstract: CERN-LHC. The $\chi_{b1}(3P)$ and $\chi_{b2}(3P)$ states are observed through their $\Upsilon(3S)$ $\gamma$ decays, using an event sample of proton-proton collisions collected by the CMS experiment at the CERN LHC. The data were collected at a center-of-mass energy of 13 TeV and correspond to an integrated luminosity of 80.0 fb$^{-1}$. The $\Upsilon(3S)$ mesons are identified through their dimuon decay channel, while the low-energy photons are detected after converting to e+e- pairs in the silicon tracker, leading to a $\chi_{b}(3P)$ mass resolution of 2.2 MeV. This is the first time that the J=1 and 2 states are well resolved and their masses individually measured: 10513.42$\pm$0.41(stat)$\pm$0.18(syst) MeV and 10524.02$\pm$0.57(stat)$\pm$0.18(syst) MeV; they are determined with respect to the world-average value of the $\Upsilon(3S)$ mass, which has an uncertainty of 0.5 MeV. The mass splitting is measured to be 10.60$\pm$0.64(stat)$\pm$0.17(syst) MeV.

Observation of the $\chi_\mathrm{b1}$(3P) and $\chi_\mathrm{b2}$(3P) and measurement of their masses;CMS Collaboration;2019;HEPData


Abstract:
CERN-LHC. Differential production cross sections of prompt J/psi and psi(2S) charmonium and Y(nS) (n = 1, 2, 3) bottomonium states are measured in proton-proton collisions at sqrt(s) = 13 TeV, with data collected by the CMS detector at the LHC, corresponding to an integrated luminosity of 2.3 fb^−1 for the J/psi and 2.7 fb^−1 for the other mesons. The five quarkonium states are reconstructed in the dimuon decay channel, for dimuon rapidity |y| < 1.2. The double-differential cross sections for each state are measured as a function of y and transverse momentum, and compared to theoretical expectations. In addition, ratios are presented of cross sections for prompt psi(2S) to J/psi, Y(2S) to Y(1S), and Y(3S) to Y(1S) production.

The tables below list the results of J/psi and psi(2S) differential cross section times dimuon branching fraction B in four rapidity bins for the unpolarized scenario, the unpolarized differential cross sections times B in the integrated rapidity range |y| < 1.2 with the corresponding scaling factors needed to obtain the cross sections for different polarization scenarios and the ratio of the psi(2S) to J/psi cross sections for the integrated rapidity range |y| < 1.2.

Measurement of quarkonium production cross sections in pp collisions at $\sqrt{s}=$ 13 TeV;CMS Collaboration;2020;HEPData


Abstract:
CERN-LHC. Observation of the Z boson decay to a psi meson and two additional leptons using 35.9 fb-1 of pp collisions with CMS. The measurement of the Z->j/psi+2leptons over the Z->4muons is also shown.

The Z->J/psi+2 leptons channel fiducial region is defined as:
- 4mu or 2e2mu
- ptLepton > 30 GeV, ptLepton>15 GeV, ptMuon>3.5GeV, ptMuon>3.5GeV
- 40 < m{non-resonant leptons} < 80 GeV
- |etaElectron| < 2.5
- |etaMuon| < 2.4
- min(DeltaR(l,l)) > 0.2.

The Z->4 muons channel fiducial region is defined as:
- 4mu or 2e2mu
- ptLepton > 30 GeV, ptLepton>15 GeV, ptMuon>3.5GeV, ptMuon>3.5GeV
- 40 < m{high pt leptons} < 80 GeV
- 4 < m{muons} < 80 GeV
- |etaElectron| < 2.5
- |etaMuon| < 2.4
- min(DeltaR(l,l)) > 0.2.

Observation of the Z $\to\psi\ell^+\ell^-$ decay in pp collisions at $\sqrt{s}=$ 13 TeV;CMS Collaboration;2019;HEPData


Abstract:
CERN-LHC. The differential cross sections for inclusive production of B+
 hadrons are measured as a function of the B+ transverse momentum
 and rapidity in pp collisions at a centre-of-mass energy of 13 TeV, using data collected by the CMS experiment that correspond
 to an integrated luminosity of 48.1 pb^−1. The measurement uses the exclusive decay channel B+ -> J/psi K+, with J/psi
 mesons that decay to a pair of muons. The results show a reasonable agreement with theoretical calculations within the uncertainties.
 See Phys. Lett. B 771 (2017) 435 for more details.

Measurement of the total and differential inclusive B(+) hadron cross sections in pp collisions at sqrt(s) = 13 TeV;CMS Collaboration;2020;HEPData


Abstract: Three of the most significant measured deviations from standard model predictions, the enhanced decay rate for $\mathrm{B}\to\mathrm{D}^{\ast}\tau\nu$, hints of lepton universality violation in $\mathrm{B}\to\mathrm{K}^{\ast}\ell\ell$ decays, and the anomalous magnetic moment of the muon, can be explained by the existence of leptoquarks (LQs) with large couplings to third-generation quarks and masses at the TeV scale. The existence of these states can be probed at the LHC in high energy proton-proton collisions. A novel search is presented for pair production of LQs coupled to a top quark and a muon using data at a center-of-mass energy of $13\,\mathrm{TeV}$, corresponding to an integrated luminosity of $35.9\,\mathrm{fb}^{-1}$, recorded by the CMS experiment. No deviation from the standard model prediction has been observed and scalar LQs decaying exclusively into $t\mu$ are excluded up to masses of $1420\,\mathrm{GeV}$. The results of this search are combined with those from previous searches for LQ decays into $t\tau$ and $b\nu$, which excluded scalar LQs below masses of $900$ and $1080\,\mathrm{GeV}$. Vector LQs are excluded up to masses of $1190\,\mathrm{GeV}$ for all possible combinations of branching fractions to $t\mu$, $t\tau$ and $b\nu$. With this analysis, all relevant couplings of LQs with an electric charge of $-1/3$ to third-generation quarks are probed for the first time.

Search for leptoquarks coupled to third-generation quarks in proton-proton collisions at $\sqrt{s} =$ 13 TeV;CMS Collaboration;2019;HEPData


Abstract: A search for the pair production of heavy fermionic partners of the top quark with charge 5/3 ($X_{5/3}$) is performed in proton-proton collisions at a center-of-mass energy of 13 TeV with the CMS detector at the CERN LHC. The data sample analyzed corresponds to an integrated luminosity of 35.9 $fb^{-1}$. The $X_{5/3}$ quark is assumed always to decay into a top quark and a W boson. Both the right-handed and left-handed $X_{5/3}$ couplings to the W boson are considered. Final states with either a pair of same-sign leptons or a single lepton are studied. No significant excess of events is observed above the expected standard model background. Lower limits at 95% confidence level on the $X_{5/3}$ quark mass are set at 1.33 and 1.30 TeV respectively for the case of right-handed and left-handed couplings to W bosons in a combination of the same-sign dilepton and single-lepton final states.

Search for top quark partners with charge 5/3 in the same-sign dilepton and single-lepton final states in proton-proton collisions at $\sqrt{s} =$ 13 TeV;CMS Collaboration;2019;HEPData


Abstract: No data abstract available.

Search for resonant $\mathrm{t \bar{t}}$ production in proton-proton collisions at $\sqrt{s}=$ 13 TeV;CMS Collaboration;2020;HEPData


Abstract: A study of the associated production of a Z boson and a charm quark jet (Z+c), and a comparison to production with a b quark jet (Z+b), in pp collisions at a centre-of-mass energy of 8 TeV are presented. The analysis uses a data sample corresponding to an integrated luminosity of 19.7 fb$^{-1}$, collected with the CMS detector at the CERN LHC. The Z boson candidates are identified through their decays into pairs of electrons or muons. Jets originating from heavy flavour quarks are identified using semileptonic decays of c or b flavoured hadrons and hadronic decays of charm hadrons. The measurements are performed in the kinematic region with two leptons with $p_T^l > 20$ GeV, $|\eta_l| < 2.1$, $71 < m_{\ell\ell} < 111$ GeV, and heavy flavour jets with $p_T^{\text{jet}} > 25$ GeV and $|\eta_\text{jet}| < 2.5$. The Z+c production cross section is measured to $\sigma(pp \to Z + c + X) \mathcal{B}(Z \to \ell^+\ell^-) = 8.8 \pm 0.5$ (stat) $\pm 0.6$ (syst) pb. The ratio of the Z+c and Z+b production cross sections is measured to be $\sigma(pp \to Z + c + X)/\sigma(pp \to Z + b + X) = 2.0 \pm 0.2$ (stat) $\pm 0.2$ (syst). The Z+c production cross section and the cross section ratio are also measured as a function of the transverse momentum of the Z boson and of the heavy flavour jet. The measurements are compared with theoretical predictions.

Measurement of associated Z + charm production in proton-proton collisions at $\sqrt{s} = $ 8 TeV;CMS Collaboration;2020;HEPData


Abstract: CERN-LHC. A measurement of the electroweak (EW) production of two jets in association with a Z boson in proton-proton collisions at $\sqrt{s}$=13TeV. The cross section is measured in a kinematic region defined by invariant masses $m_{ll}~>~50$ GeV, $m_{jj}~>~120$ GeV, and transverse momenta $p_{Tj}~>~25$ GeV, where $l$ denotes electrons and muons, and $j$ - quarks produced in the hard interaction. The measurement is based on data recorded in 2016 by the CMS experiment at the LHC corresponding to an integrated luminosity of 35.9 $fb^{-1}$. Limits on anomalous trilinear gauge couplings associated with dimension-six operators are given in the framework of an effective field theory and an effective Lagrangian.

Electroweak production of two jets in association with a Z boson in proton-proton collisions at $\sqrt{s}= $ 13 TeV;CMS Collaboration;2019;HEPData


Abstract: A general search for the pair production of resonances, each decaying to twoquarks, is reported. The search is conducted separately for heavier resonances(masses above 400 GeV), where each of the four final-state quarks generates ahadronic jet resulting in a four-jet signature, and for lighter resonances(masses between 80 and 400 GeV), where the pair of quarks from each resonanceis collimated and reconstructed as a single jet resulting in a two-jetsignature. In addition, a b-tagged selection is applied to target resonanceswith a bottom quark in the final state. The analysis uses data collected withthe CMS detector at the CERN LHC, corresponding to an integrated luminosity of35.9 fb-1, from proton-proton collisions at a center-of-mass energy of 13 TeV.The mass spectra are analyzed for the presence of new resonances, and arefound to be consistent with standard model expectations. The results areinterpreted in the framework of R-parity-violating supersymmetry assuming thepair production of scalar top quarks decaying via the hadronic couplingUDD_{312} or UDD_{323}, and upper limits on the cross section as a function of the top squark mass are set. These results probe a wider range of masses than previously explored at the LHC, andextend the top squark mass limits in the stop->qq scenario.

Search for pair-produced resonances decaying to quark pairs in proton-proton collisions at $\sqrt{s}=$ 13 TeV;CMS Collaboration;2018;HEPData


Abstract: No data abstract available.

Dielectron and heavy-quark production in inelastic and high-multiplicity proton-proton collisions at $\sqrt{s_{\rm NN}}$ = 13 TeV;ALICE Collaboration;2018;HEPData


Abstract: CERN-LHC. The analysis searches for exotic Higgs boson decays to two light pseudoscalars, in the final state of two muons and two tau leptons. This signature is sensitive to the Higgs sector of the next to minimal supersymmetric standard model (NMSSM) as well as two Higgs doublet models extended with a scalar singlet (2HDM+S). The analysis is based on data from proton-proton collisions at a center-of-mass energy of 13 TeV collected with the CMS detector at the LHC, in 2016 corresponding to an integrated luminosity of 35.9 fb-1. No signal above the standard model background expectation is observed. The tables give upper limits on the cross section times branching fraction for Higgs bosons with masses between 15 and 62 GeV.

Search for an exotic decay of the Higgs boson to a pair of light pseudoscalars in the final state of two muons and two $\tau$ leptons in proton-proton collisions at $\sqrt{s}=$ 13 TeV;CMS Collaboration;2018;HEPData


Abstract: No data abstract available.

Observation of Higgs boson decay to bottom quarks;CMS Collaboration;2019;HEPData


Abstract:
CERN-LHC. The analysis searches for neutral Higgs bosons which decay into a bb quark pair and are produced in association with at least one additional b quark. This signature is sensitive to the Higgs sector of the minimal supersymmetric standard model (MSSM) with large values of the parameter tan(beta) as well as two Higgs doublet models (2HDM). The analysis is based on data from proton-proton collisions at a center-of-mass energy of 13 TeV collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 35.7 fb-1. No signal above the standard model background expectation is observed. The tables give upper limits on the cross section times branching fraction for Higgs bosons with masses up to 1300 GeV, and upper limits for the MSSM parameter tan(beta) as function of the mass of the pseudoscalar MSSM Higgs bosons H/A within different MSSM benchmark scenarios.

Only selected tables are displayed here. Please see the full paper for interpretations in other MSSM benchmark scenarios and 2HDM.

Search for beyond the standard model Higgs bosons decaying into a $\mathrm{b\overline{b}}$ pair in pp collisions at $\sqrt{s} =$ 13 TeV;CMS Collaboration;2018;HEPData


Abstract: Search for resonant pair production of Higgs bosons decaying to bottom quark-antiquark pairs in proton-proton collisions at 13 TeV. The 95% CL upper limits on the production cross section times branching fraction on the resonant (spin-0 and spin-2) are provided.

Search for resonant pair production of Higgs bosons decaying to bottom quark-antiquark pairs in proton-proton collisions at 13 TeV;CMS Collaboration;2019;HEPData


Abstract: CERN-LHC. CMS. Azimuthal correlations between the two jets with the largest transverse momenta $p_{T}$ in inclusive 2-, 3-, and 4-jet events are presented for several regions of the leading jet $p_{T}$ up to 4 TeV. For 3- and 4-jet scenarios, measurements of the minimum azimuthal angles between any two of the three or four leading $p_{T}$ jets are also presented. Jets are reconstructed using the infrared- and collinear-safe anti-$k_{T}$ clustering algorithm with a distance parameter $R=0.4$.

Azimuthal correlations for inclusive 2-jet, 3-jet, and 4-jet events in pp collisions at $\sqrt{s}= $ 13 TeV;CMS Collaboration;2019;HEPData


Abstract: No data abstract available.

Transverse momentum spectra and nuclear modification factors of charged particles in pp, p-Pb and Pb-Pb collisions at the LHC;ALICE Collaboration;2019;HEPData


Abstract: No data abstract available.

Measurement of electroweak production of a W boson in association with two jets in proton-proton collisions at $\sqrt{s}=$ 13 TeV;CMS Collaboration;2020;HEPData


Abstract: No data abstract available.

Charged jet cross section and fragmentation in proton-proton collisions at $\sqrt{s}$ = 7 TeV;ALICE Collaboration;2018;HEPData


Abstract: CERN-LHC. The analysis searches for exotic Higgs boson decays to two light pseudoscalars, in the final state of two b quarks and two tau leptons. This signature is sensitive to the Higgs sector of the next to minimal supersymmetric standard model (NMSSM) as well as two Higgs doublet models extended with a scalar singlet (2HDM+S). The analysis is based on data from proton-proton collisions at a center-of-mass energy of 13 TeV collected with the CMS detector at the LHC, in 2016 corresponding to an integrated luminosity of 35.9 fb-1. No signal above the standard model background expectation is observed. The tables give upper limits on the cross section times branching fraction for Higgs bosons with masses between 15 and 60 GeV.

Search for an exotic decay of the Higgs boson to a pair of light pseudoscalars in the final state with two b quarks and two $\tau$ leptons in proton-proton collisions at $\sqrt{s}=$ 13 TeV;CMS Collaboration;2018;HEPData


Abstract: Event shape variables measured using multijet final states in proton-proton collisions at \sqrt{s} = 13 TeV. (CMS)

Event shape variables measured using multijet final states in proton-proton collisions at $\sqrt{s} =$ 13 TeV;CMS Collaboration;2019;HEPData


Abstract: No data abstract available.

Measurement of dielectron production in central Pb-Pb collisions at $\sqrt{{\textit{s}}_{\mathrm{NN}}}$ = 2.76 TeV;ALICE Collaboration;2018;HEPData


Abstract: A search for a Higgs boson decaying into a pair of electrons or muons and a photon is described. Higgs boson decays to a Z boson and a photon $(H\rightarrow Z\gamma\rightarrow ll\gamma, l = e \text{ or } \mu)$, or to two photons, one of which has an internal conversion into a muon pair $(H\rightarrow\gamma^{*}\gamma\rightarrow\mu\mu\gamma)$ were considered. The analysis is performed using a data set recorded by the CMS experiment at the LHC from proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb$^{-1}$. No significant excess above the background prediction has been found. Limits are set on the cross section for a standard model Higgs boson decaying to opposite-sign electron or muon pairs and a photon. The observed limits on cross section times the corresponding branching fractions vary between 1.4 and 4.0 (6.1 and 11.4) times the standard model cross section for $H\rightarrow\gamma^{*}\gamma\rightarrow\mu\mu\gamma$ $(H\rightarrow Z\gamma\rightarrow ll\gamma)$ in the 120-130 GeV mass range of the $ll\gamma$ system. The $H\rightarrow\gamma^{*}\gamma\rightarrow\mu\mu\gamma$ and $H\rightarrow Z\gamma\rightarrow ll\gamma$ analyses are combined for $m_{H} = 125$ GeV, obtaining an observed (expected) 95% condifence level upper limit of 3.9 (2.0) times the standard model cross section.

Search for the decay of a Higgs boson in the $\ell\ell\gamma$ channel in proton-proton collisions at $\sqrt{s}=$ 13 TeV;CMS Collaboration;2019;HEPData


Abstract: A search is reported for heavy resonances decaying into $e \mu$ final states in proton-proton collisions recorded by the CMS experimentat the CERN LHC at $\sqrt{s}=13$ TeV, corresponding to an integrated luminosity of 35.9 fb$^{-1}$. The search focuses on resonancemasses above 200 GeV. With no evidence found for physics beyond the standard model in the $e \mu$ mass spectrum, upper limits are setat 95% confidence level on the product of the cross section and branching fraction for this lepton-flavor violating signal.Based on these results, resonant $\tau$ sneutrino production in R-parity violating supersymmetric models is excluded formasses below 1.7 TeV, for couplings $\lambda_{132}=\lambda_{231}=\lambda'_{311}=0.01$. Heavy $Z'$ gauge bosons with lepton-flavor violatingtransitions are excluded for masses up to 4.4 TeV.The $e \mu $ mass spectrum is also interpreted in terms of non-resonant contributions from quantum black-holeproduction in models with one to six extra spatial dimensions, and lower mass limits are found between 3.6 and 5.6 TeV.In all interpretations used in this analysis, the results of this search improve previous limits by about 1 TeV.These limits correspond to the most sensitive values obtained at colliders.

Search for lepton-flavor violating decays of heavy resonances and quantum black holes to e$\mu$ final states in proton-proton collisions at $\sqrt{s}=$ 13 TeV;CMS Collaboration;2019;HEPData


Abstract: CERN-LHC. A search for charged Higgs boson decaying to a charm and a bottom quark (H+→cb¯) is performed using 19.7 fb−1 of pp collision data at √s= 8 TeV. The production mechanism investigated in this search is tt¯ pair production in which one top quark decays to a charged Higgs boson and a bottom quark and the other decays to a charged lepton, a neutrino, and a bottom quark. Charged Higgs boson decays to cb¯ are searched for, resulting in a final state containing at least four jets, a charged lepton (muon or electron), and missing transverse momentum. A kinematic fit is performed to identify the pair of jets least likely to be the bottom quarks originating from direct top quark decays and the invariant mass of this pair is used as the final observable in the search. No evidence for the presence of a charged Higgs boson is observed and upper limits at 95% confidence level of 0.8-0.5% are set on the branching fraction B(t→H+b), assuming B(H+→cb¯)= 1.0 and B(t→H+b)+B(t→Wb)= 1.0, for the charged Higgs boson mass range 90-150 GeV.

Search for a charged Higgs boson decaying to charm and bottom quarks in proton-proton collisions at $\sqrt{s} =$ 8 TeV;CMS Collaboration;2019;HEPData


Abstract: Constraints on anomalous Higgs boson couplings using production and decay information in the four-lepton final state

Constraints on anomalous $HVV$ couplings from the production of Higgs bosons decaying to $\tau$ lepton pairs;CMS Collaboration;2019;HEPData


Abstract: A search for the standard model Higgs boson, decaying to a pair of tau leptons and produced in association with a W or a Z boson is performed. A data sample of proton-proton collisions collected at at center-of-mass energy of 13 TeV by the CMS detector is used. These results are combined with earlier CMS measurements targeting Higgs boson decays to a pair of tau leptons, performed with the same data set in the gluon fusion and vector boson fusion production modes.

Search for the associated production of the Higgs boson and a vector boson in proton-proton collisions at $\sqrt{s} =$ 13 TeV via Higgs boson decays to $\tau$ leptons;CMS Collaboration;2019;HEPData


Abstract: CERN-LHC-ALICE. Angular correlations between heavy-flavour decay electrons and charged particles at mid-rapidity ($|\eta| < 0.8$) are measured in p--Pb collisions at $\sqrt{s_{\rm{NN}}} = 5.02$ TeV. The analysis is carried out for the 0--20\% (high) and 60--100\% (low) multiplicity ranges. The jet contribution in the correlation distribution from high-multiplicity events is removed by subtracting the distribution from low-multiplicity events. An azimuthal modulation remains after removing the jet contribution, similar to previous observations in two-particle angular correlation measurements for light-flavour hadrons. A Fourier decomposition of the modulation results in a positive second-order coefficient ($v_{2}$) for heavy-flavour decay electrons in the transverse momentum interval $1.5 < p_{\rm{T}} < 4$~GeV/$c$ in high-multiplicity events, with a significance larger than $5\sigma$. The results are compared with those of charged particles at mid-rapidity and of inclusive muons at forward rapidity. This is the first $v_2$ measurement of open heavy-flavour particles at mid-rapidity in small collision systems, which could provide crucial information to help interpret the anisotropies observed in such systems.

Azimuthal anisotropy of heavy-flavour decay electrons in p-Pb collisions at $ \sqrt{s_{\rm NN}}$ = 5.02 TeV;ALICE Collaboration;2019;HEPData


Abstract: CERN-LHC. Search for a SM Higgs boson in the dimuon decay channel in proton-proton collisions at a center-of-mass energy of 7 TeV (5.0 fb^-1, 2011), 8 TeV (19.8 fb^-1, 2012), and 13 TeV (35.9 fb^1, 2016).

Search for the Higgs boson decaying to two muons in proton-proton collisions at $\sqrt{s}=$ 13 TeV;CMS Collaboration;2019;HEPData


Abstract: No data abstract available.

Measurement of the differential Drell-Yan cross section in proton-proton collisions at $ \sqrt{\mathrm{s}} $ = 13 TeV;CMS Collaboration;2019;HEPData


Abstract: CERN-LHC. We report measurements of the production of prompt D0, D*+, D+ and D/s+ mesons in Pb-Pb collisions at the centre-of-mass energy per nucleon pair sqrt(sNN)=5.02 TeV, in the centrality classes 0-10%, 30-50% and 60-80%. The D-meson production yields are measured ad mid-rapidity (|y|<0.5) as a function of transverse momentum (pT). The pT intervals covered in central collisions are: 1 8 GeV/c, while it is larger at lower pT. The nuclear modification factors for strange and non-strange D mesons are also compared to theoretical models with different implementation of in-medium energy loss.

Measurement of D$^0$, D$^+$, D$^{*+}$ and D$^+_{\rm s}$ production in Pb-Pb collisions at $\mathbf{\sqrt{s_{\rm NN}}}= 5.02$ TeV;ALICE Collaboration;2019;HEPData


Abstract: The elliptic flow of inclusive and direct photons was measured at mid-rapidity in two centrality classes 0--20\% and 20--40\% in Pb--Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$ TeV by ALICE. Photons were detected with the highly segmented electromagnetic calorimeter PHOS and via conversions in the detector material with the $e^+e^-$ pairs reconstructed in the central tracking system. The results of the two methods were combined and the direct photon elliptic flow was extracted in the transverse momentum range $0.9 < p_\text{T} < 6.2$ GeV/$c$. We test the hypothesis $v_{2}^{\gamma,dir} \equiv 0$ for $0.9 < p_\text{T} < 2.1$ GeV/$c$ and obtain a significance of $1.4\sigma$ for the 0--20\% class and $1.0\sigma$ for the 20--40\% class. A comparison to RHIC data shows a similar magnitude of the measured elliptic flow, while hydrodynamic and transport model calculations predict a smaller flow than observed.

Direct photon elliptic flow in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV;ALICE Collaboration;2019;HEPData


Abstract: A search is presented for massive narrow resonances decaying either into two Higgs bosons, or into a Higgs boson and a W or Z boson. The decay channels considered are $HH \rightarrow b\bar{b}\tau^{+}\tau^{-}$ and $VH \rightarrow q\bar{q}\tau^{+}\tau^{-}$,where H denotes the Higgs boson, and V denotes the W or Z boson. This analysis is based on a data sample of proton-proton collisions collected at a center-of-mass energy of 13 TeV by the CMS Collaboration, corresponding to an integrated luminosity of 35.9 fb$^{−1}$. For the TeV-scale mass resonances considered, substructure techniques provide ways to differentiateamong the hadronization products from vector boson decays to quarks, Higgs boson decays to bottom quarks, and quark- or gluon-induced jets. Reconstruction techniques are used that have been specifically optimized to select events in which the tau lepton pair is highly boosted. The observed data are consistent with standard model expectations and upper limits areset at 95% confidence level on the product of cross section and branching fraction for resonance masses between 0.9 and 4.0 TeV. Exclusion limits are set in the context of bulk radion and graviton models: spin-0 radion resonances are excluded below a mass of 2.7 TeV at 95% confidence level. In the spin-1 heavy vector triplet framework, mass-degenerate W' and Z' resonances with dominant couplings to the standard model gauge bosons are excluded below a mass of 2.8 TeV at 95% confidence level. These are the first limits for these decay channels at 13 TeV.

Search for heavy resonances decaying into two Higgs bosons or into a Higgs boson and a W or Z boson in proton-proton collisions at 13 TeV;CMS Collaboration;2019;HEPData


Abstract: CERN-LHC. The production of W bosons is studied in proton-lead (pPb) collisions at a nucleon-nucleon centre-of-mass energy of $\sqrt{{s}_\textrm{NN}} = 8.16$ TeV. Measurements are performed in the $\textrm{W}^{\pm}\to\mu^{\pm}\nu$ channel using a data sample corresponding to an integrated luminosity of $173.4 \pm 8.7 \textrm{nb}^{-1}$, collected by the CMS Collaboration at the LHC. The number of positively and negatively charged W bosons is determined separately in the muon pseudorapidity region in the laboratory frame $|\eta_{\textrm{lab}}^{\mu}|<2.4$ and transverse momentum $p_{\textrm{T}}^{\mu}>25$~GeV/$c$. The $\textrm{W}^{\pm}$ boson differential cross sections, muon charge asymmetry, and the ratios of $\textrm{W}^{\pm}$ boson yields for the proton-going over the Pb-going beam directions are reported as a function of the muon pseudorapidity in the nucleon-nucleon centre-of-mass frame. The measurements are compared to the predictions from theoretical calculations based on parton distribution functions (PDFs) at next-to-leading-order. The results favour PDF calculations that include nuclear modifications and provide constraints on the nuclear PDF global fits.

Observation of nuclear modifications in W$^\pm$ boson production in pPb collisions at $\sqrt{s_\mathrm{NN}} =$ 8.16 TeV;CMS Collaboration;2019;HEPData


Abstract: No data abstract available.

Pseudorapidity distributions of charged hadrons in xenon-xenon collisions at $\sqrt{s_\mathrm{NN}} =$ 5.44 TeV;CMS Collaboration;2019;HEPData


Abstract: The transverse momentum $p_{T}$ distributions of $\Lambda$, $\Xi-$, and $\Omega-$ baryons, their antiparticles, and ${K_{0}}^{S}$ mesons are measured in proton-proton (pp) and proton-lead (pPb) collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV over a broad rapidity range. The data, corresponding to integrated luminosities of 40.2 $nb^{−1}$ and 15.6 $μb^{−1}$ for pp and pPb collisions, respectively, were collected by the CMS experiment. The nuclear modification factor $R_{pPb}$, which is defined as the ratio of the particle yield in pPb collisions and a scaled pp reference, is measured for each particle. A strong dependence on particle species is observed in the $p_{T}$ range from 2 to 7 GeV, where $R_{pPb}$ for ${K_{0}}^{S}$ is consistent with unity, while an enhancement ordered by strangeness content and/or particle mass is observed for the three baryons. In pPb collisions, the strange hadron production is asymmetric about the nucleon-nucleon center-of-mass rapidity. Enhancements, which depend on the particle type, are observed in the direction of the Pb beam. The results are compared with predictions from EPOS LHC, which includes parametrized radial flow. The model is in qualitative agreement with the $R_{pPb}$ data, but fails to describe the dependence on particle species in the yield asymmetries measured away from midrapidity in pPb collisions.

Strange hadron production in pp and pPb collisions at $\sqrt{s_\mathrm{NN}}= $ 5.02 TeV;CMS Collaboration;2020;HEPData


Abstract: The second- and third-order azimuthal anisotropy Fourier harmonics of charged particles produced in pPb collisions, at $\sqrt{s_{_{\mathrmNN)}}}=8.16\text{TeV}$, are studied over a wide range of event multiplicities. Multiparticle correlations are used to isolate global properties stemming from the collision overlap geometry. The second-order ``elliptic'' harmonic moment is obtained with high precision through four-, six-, and eight-particle correlations and, for the first time, the third-order ``triangular'' harmonic moment is studied using four-particle correlations. A sample of peripheral PbPb collisions at $\sqrt{s_{_{\mathrmNN)}}}=5.02\text{TeV}$ that covers a similar range of event multiplicities as the pPb results is also analyzed. Model calculations of initial-state fluctuations in pPb and PbPb collisions can be directly compared to the high precision experimental results. This work provides new insight into the fluctuation-driven origin of the $v_3$ coefficients in pPb and PbPb collisions, and into the dominating overall collision geometry in PbPb collisions at the earliest stages of heavy ion interactions.

Multiparticle correlation studies in pPb collisions at $\sqrt{s_\mathrm{NN}} =$ 8.16 TeV;CMS Collaboration;2020;HEPData


Abstract: Anisotropies in the initial energy density distribution of the quark-gluon plasma created in high energy heavy ion collisions lead to anisotropies in the azimuthal distributions of the final-state particles known as collective anisotropic flow. Fourier harmonic decomposition is used to quantify these anisotropies. The higher-order harmonics can be induced by the same order anisotropies (linear response) or by the combined influence of several lower order anisotropies (nonlinear response) in the initial state. The mixed higher-order anisotropic flow and nonlinear response coefficients of charged particles are measured as functions of transverse momentum and centrality in PbPb collisions at nucleon-nucleon center-of-mass energies $\sqrt{\smash[b]{s_{_{\mathrm{NN}}}}} = 2.76$ and $5.02$ TeV with the CMS detector. The results are compared with viscous hydrodynamic calculations using several different initial conditions, as well as microscopic transport model calculations. None of the models provides a simultaneous description of the mixed higher-order flow harmonics and nonlinear response coefficients.

Mixed higher-order anisotropic flow and nonlinear response coefficients of charged particles in PbPb collisions at $\sqrt{s_\mathrm{NN}} =$ 2.76 and 5.02 TeV;CMS Collaboration;2020;HEPData


Abstract: No data abstract available.

Studies of charm quark diffusion inside jets using PbPb and pp collisions at $\sqrt{s_\mathrm{NN}} =$ 5.02 TeV;CMS Collaboration;2021;HEPData


Abstract:
Measuring K$^0_{\rm S}$K$^{\rm \pm}$ interactions using pp collisions at $\mathbf {\sqrt{s}=7}$ TeV
LHC ALICE collaboration K0sKch femtoscopy from 7 TeV pp collisions minimum bias trigger, -0.8 < eta < 0.8
We present the first measurements of femtoscopic correlations between the K$^0_{\rm S}$ and K$^{\rm \pm}$ particles in pp collisions at $\sqrt{s}=7$ TeV measured by the ALICE experiment. The observed femtoscopic correlations are consistent with final-state interactions proceeding solely via the $a_0(980)$ resonance. The extracted kaon source radius and correlation strength parameters for K$^0_{\rm S}$K$^{\rm -}$ are found to be equal within the experimental uncertainties to those for K$^0_{\rm S}$K$^{\rm +}$. Results of the present study are compared with those from identical-kaon femtoscopic studies also performed with pp collisions at $\sqrt{s}=7$ TeV by ALICE and with a K$^0_{\rm S}$K$^{\rm \pm}$ measurement in Pb-Pb collisions at $\sqrt{s_{\rm NN}}=2.76$ TeV. Combined with the Pb-Pb results, our pp analysis is found to be compatible with the interpretation of the $a_0(980)$ having a tetraquark structure instead of that of a diquark.

Measuring K$^0_{\rm S}$K$^{\rm{\pm}}$ interactions using pp collisions at $\sqrt{s}=7$ TeV;ALICE Collaboration;2019;HEPData


Abstract: CERN-LHC-ALICE. The second ($v_2$) and third ($v_3$) flow harmonic coefficients of J/$\psi$ mesons are measured at forward rapidity (2.5 $<$ $y$ $<$ 4.0) in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV with the ALICE detector at the LHC. Results are obtained with the scalar product method and reported as a function of transverse momentum, $p_{\rm T}$, for various collision centralities. A positive value of J/$\psi$ $v_3$ is observed with 3.7$\sigma$ significance. The measurements, compared to those of prompt D$^0$ mesons and charged particles at mid-rapidity, indicate an ordering with $v_{\rm n}$(J/$\psi$) $

Study of J/$\psi$ azimuthal anisotropy at forward rapidity in Pb-Pb collisions at $\sqrt{{\textit s}_{\rm NN}}$ = 5.02 TeV;ALICE Collaboration;2019;HEPData


Abstract: No data abstract available.

Measurement of quark- and gluon-like jet fractions using jet charge in PbPb and pp collisions at 5.02 TeV;CMS Collaboration;2020;HEPData


Abstract: A general search is presented for a low-mass $\tau^+\tau^-$ resonance produced in association with a bottom quark. The search is based on proton-proton collision data at a center-of-mass energy of $13~\mathrm{TeV}$ collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of $35.9~\mathrm{fb}^{-1}$. The observed data are consistent with the standard model expectation. Upper limits at $95\%$ confidence level on the cross section times branching fraction are determined for two hypothetical signal models: a light pseudoscalar Higgs boson decaying to a pair of $\tau$ leptons produced in association with bottom quarks, and a low-mass boson X decaying to a $\tau$ lepton pair that is produced in the decay of a bottom-like quark B such that $\mathrm{B}\to \mathrm{bX}$. Masses between $25$ and $70~\mathrm{GeV}$ are probed for the light pseudoscalar boson with upper limits ranging from $250$ to $44~\mathrm{pb}$. Upper limits from $20$ to $0.3~\mathrm{pb}$ are set on B masses between $170$ and $450~\mathrm{GeV}$ for X boson masses between $20$ to $70~\mathrm{GeV}$. Through event selections that are optimized for vector-like quarks, the search results extend the reach for new particles to a previously unexplored phase space.

Search for a low-mass $\tau^-\tau^+$ resonance in association with a bottom quark in proton-proton collisions at $\sqrt{s} =$ 13 TeV;CMS Collaboration;2019;HEPData


Abstract: A search is performed for events consistent with the pair production of a new heavy particle that acts as a mediator between a dark sector and normal matter, and that decays to a light quark and a new fermion called a dark quark. The search is based on data corresponding to an integrated luminosity of 16.1 fb$^{-1}$ from proton-proton collisions at $\sqrt{s}=13$ TeV collected by the CMS experiment at the LHC in 2016. The dark quark is charged only under a new quantum-chromodynamics-like force, and forms an ``emerging jet'' via a parton shower, containing long-lived dark hadrons that give rise to displaced vertices when decaying to standard model hadrons. The data are consistent with the expectation from standard model processes. Limits are set at 95% confidence level excluding dark pion decay lengths between 5 and 225 mm for dark mediators with masses between 400 and 1250 GeV. Decay lengths smaller than 5 and greater than 225 mm are also excluded in the lower part of this mass range. The dependence of the limit on the dark pion mass is weak for masses between 1 and 10 GeV. This analysis is the first dedicated search for the pair production of a new particle that decays to a jet and an emerging jet.

Search for new particles decaying to a jet and an emerging jet;CMS Collaboration;2019;HEPData


Abstract: CERN-LHC. Measurements of inclusive and direct photon production at mid-rapidity in pp collisions at $\sqrt{s}=2.76$ and 8 TeV are presented by the ALICE experiment at the LHC. The results are reported in transverse momentum ranges of $0.47$ GeV/c is at least one $\sigma$ above unity and consistent with expectations from next-to-leading order pQCD calculations.

Direct photon production at low transverse momentum in proton-proton collisions at $\mathbf{\sqrt{s}=2.76}$ and 8 TeV;ALICE Collaboration;2019;HEPData


Abstract: CERN-LHC. CMS. A search for supersymmetry is presented based on events with at least one photon, jets, and large missing transverse momentum produced in proton-proton collisions at a center-of-mass energy of 13 TeV. The data correspond to an integrated luminosity of 35.9 $fb^{-1}$ and were recorded at the LHC with the CMS detector in 2016. The analysis characterizes signal-like events by categorizing the data into various signal regions based on the number of jets, the number of b-tagged jets, and the missing transverse momentum. No significant excess of events is observed with respect to the expectations from standard model processes. Limits are placed on the gluino and top squark pair production cross sections using several simplified models of supersymmetric particle production with gauge-mediated supersymmetry breaking. Depending on the model and the mass of the next-to-lightest supersymmetric particle, the production of gluinos with masses as large as 2120 GeV and the production of top squarks with masses as large as 1230 GeV are excluded at 95% confidence level.

Search for supersymmetry in events with a photon, jets, b-jets, and missing transverse momentum in proton-proton collisions at 13 TeV;CMS Collaboration;2019;HEPData


Abstract: CERN-LHC. The charged-particle pseudorapidity density in Xe--Xe collisions at $\sqrt{s_{_{\mathrm{NN}}}} = 5.44\,\mathrm{TeV}$ in centrality classes measured by ALICE. The measurement covers a wide pseudorapidity range from $-3.5$ to $5$. The distributions of $\mathrm{d}N_\mathrm{ch}/\mathrm{d}\eta$, the densities of the distributions at mid-rapidity and $N^\mathrm{tot}_\mathrm{ch}$ are presented.

Centrality and pseudorapidity dependence of the charged-particle multiplicity density in Xe-Xe collisions at $\sqrt{s_{\rm NN}}$ = 5.44 TeV;ALICE Collaboration;2019;HEPData


Abstract: CERN-LHC. Inclusive $\Upsilon$(1S) and $\Upsilon$(2S) production have been measured in Pb-Pb collisions at the centre-of-mass energy per nucleon-nucleon pair $\sqrt{s_{_{\rm NN}}}=5.02$ TeV, using the ALICE detector at the CERN LHC. The $\Upsilon$ mesons are reconstructed in the centre-of-mass rapidity interval $2.5

$\Upsilon$ suppression at forward rapidity in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV;ALICE Collaboration;2019;HEPData


Abstract: A search for supersymmetric particles produced in the vector boson fusion topology in proton-proton collisions is presented. The search targets final states with one or zero leptons, large missing transverse momentum, and two jets with a large separation in rapidity. The data sample corresponds to an integrated luminosity of 35.9 fb$^{-1}$ of proton-proton collisions at $\sqrt{s}=13$ TeV collected in 2016 with the CMS detector at the LHC. The observed dijet invariant mass and lepton-neutrino transverse mass spectra are found to be consistent with the standard model predictions. Upper limits are set on the cross sections for chargino ($\tilde{\chi}_{1}^{\pm}$) and neutralino ($\tilde{\chi}_{2}^{0}$) production with two associated jets. For a compressed mass spectrum scenario in which the $\tilde{\chi}_{1}^{\pm}$ and $\tilde{\chi}_{2}^{0}$ decays proceed via a light slepton and the mass difference between the lightest neutralino $\tilde{\chi}_{1}^{0}$ and the mass-degenerate particles $\tilde{\chi}_{1}^{\pm}$ and $\tilde{\chi}_{2}^{0}$ is 1 (30) GeV, the most stringent lower limit to date of 112 (215) GeV is set on the mass of these latter two particles.

Search for supersymmetry with a compressed mass spectrum in the vector boson fusion topology with 1-lepton and 0-lepton final states in proton-proton collisions at $\sqrt{s} =$ 13 TeV;CMS Collaboration;2019;HEPData


Abstract: A search for long-lived particles decaying into jets is presented. Data were collected with the CMS detector at the LHC from proton-proton collisionsat a center-of-mass energy of 13 $\mathrm{TeV}$ in 2016, corresponding to an integratedluminosity of 35.9 $\mathrm{fb}^{-1}$. The search examines the distinctive topology of displaced tracks and secondary vertices. The selected events are found to be consistent with standard model predictions.For a simplified model in which long-lived neutral particles are pair produced and decay to two jets, pair production cross sections largerthan 0.2 $\mathrm{fb}$ are excluded at $95 \%$ confidence level for a long-lived particle mass larger than 1000 $\mathrm{GeV}$ and proper decay lengths between 3 and 130 $\mathrm{mm}$.Several supersymmetry models with gauge-mediated supersymmetrybreaking or $R$-parity violation, where pair-produced long-lived gluinos or top squarks decay to several final-state topologiescontaining displaced jets, are also tested. For these models, in the mass ranges above 200 $\mathrm{GeV}$, gluino masses up to 2300--2400 $\mathrm{GeV}$ and top squark masses up to 1350--1600 $\mathrm{GeV}$ are excluded for proper decay lengths approximately between 10 and100 $\mathrm{mm}$. These are the most restrictive limits to date on these models.

Search for long-lived particles decaying into displaced jets in proton-proton collisions at $\sqrt{s} =$ 13 TeV;CMS Collaboration;2019;HEPData


Abstract: A search for dark matter produced in association with top quarks in proton-proton collisions at a center-of-mass energy of 13 TeV is presented. The data set used corresponds to an integrated luminosity of 35.9 fb-1 recorded with the CMS detector at the LHC. Whereas previous searches for neutral scalar or pseudoscalar mediators considered dark matter production in association with a top quark pair only, this analysis also includes production modes with a single top quark. The results are derived from the combination of multiple selection categories that are defined to target either the single top quark or the top quark pair signature. No significant deviations with respect to the standard model predictions are observed. The results are interpreted in the context of a simplified model in which a scalar or pseudoscalar mediator particle couples to a top quark and subsequently decays into dark matter particles. Scalar and pseudoscalar mediator particles with masses below 290 and 300 GeV, respectively, are excluded at 95% confidence level, assuming a dark matter particle mass of 1 GeV and mediator couplings to fermions and dark matter particles equal to unity.

Search for dark matter produced in association with a single top quark or a top quark pair in proton-proton collisions at $ \sqrt{s}=13 $ TeV;CMS Collaboration;2019;HEPData


Abstract: CERN-LHC. The production yield of prompt D mesons and their elliptic flow coefficient v_{2} were measured with the Event-Shape Engineering (ESE) technique applied to mid-central (10-30% and 30-50% centrality classes) Pb-Pb collisions at the centre-of-mass energy per nucleon pair sqrt{s_{NN}}=5.02 TeV, with the ALICE detector at the LHC. The ESE technique allows the classification of events, belonging to the same centrality, according to the azimuthal anisotropy of soft particle production in the collision. The reported measurements give the opportunity to investigate the dynamics of charm quarks in the Quark-Gluon Plasma and provide information on their participation in the collective expansion of the medium. D mesons were reconstructed via their hadronic decays at mid-rapidity, |eta|<0.8, in the transverse momentum interval 1

Event-shape engineering for the D-meson elliptic flow in mid-central Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV;ALICE Collaboration;2019;HEPData


Abstract: A search for new massive particles decaying into a pair of Higgs bosons in proton-proton collisions at a center-of-mass energy of 13 TeV is presented. Data were collected with the CMS detector at the LHC, corresponding to an integrated luminosity of $35.9~\mathrm{fb}^{-1}$. The search is performed for resonances with a mass between $0.8$ and $3.5~\mathrm{TeV}$ using events in which one Higgs boson decays into a bottom quark pair and the other decays into two $\mathrm{W}$ bosons that subsequently decay into a lepton, a neutrino, and a quark pair. The Higgs boson decays are reconstructed with techniques that identify final state quarks as substructure within boosted jets. The data are consistent with standard model expectations. Exclusion limits are placed on the product of the cross section and branching fraction for generic spin-0 and spin-2 massive resonances. The results are interpreted in the context of radion and bulk graviton production in models with a warped extra spatial dimension. These are the best results to date from searches for an HH resonance decaying to this final state, and they are comparable to the results from searches in other channels for resonances with masses below $1.5~\mathrm{TeV}$.

Search for resonances decaying to a pair of Higgs bosons in the $\mathrm{b\overline{b}q\overline{q}'}\ell\nu$ final state in proton-proton collisions at $\sqrt{s}=$ 13 TeV;CMS Collaboration;2019;HEPData


Abstract: A statistical combination of searches for heavy resonances decaying to pairs of bosons or leptons is presented. The data correspond to an integrated luminosity of 35.9\fbinv collected during 2016 by the CMS experiment at the LHC in proton-proton collisions at a center-of-mass energy of 13\TeV. The data are found to be consistent with expectations from the standard model background. Exclusion limits are set in the context of models of spin-1 heavy vector triplets and of spin-2 bulk gravitons. For mass-degenerate W' and Z' resonances that predominantly couple to the standard model gauge bosons, the mass exclusion at $95\%$ confidence level of heavy vector bosons is extended to 4.5\TeV as compared to 3.8\TeV determined from the best individual channel. This excluded mass increases to 5.0\TeV if the resonances couple predominantly to fermions.

Combination of CMS searches for heavy resonances decaying to pairs of bosons or leptons;CMS Collaboration;2020;HEPData


Abstract: Relative production of X(5568) with respect to $B^0_s$, times the branching ratio of the $X(5568) \to B^0_s \pi^\pm$. Numbers are taken from the summary of the paper.

Search for the X(5568) state decaying into $\mathrm{B}^{0}_{\mathrm{s}}\pi^{\pm}$ in proton-proton collisions at $\sqrt{s} = $ 8 TeV;CMS Collaboration;2020;HEPData


Abstract: CERN-LHC. Measurements are presented of the lifetimes of the $B^{0}$, $B_{s}^{0}$, $\Lambda_{b}$ and $B_{c}^{+}$ hadrons using the decay channels $B^{0} \to J/\psi K^{*}(892)$, $B^{0} \to J/\psi K_{s}^{0}$, $B_s^{0} \to J/\psi \pi \pi$, $B_s^{0} \to J/\psi\phi(1020)$, $\Lambda_{b} \to J/\psi\Lambda$ amd $B_{c}^{+} \to J/\psi\pi$. The data sample, corresponding to an integrated luminosity of 19.7fb$^{-1}$, was collected by the CMS detector at the LHC in proton-proton collisions at $\sqrt{s}=8$TeV. The $B^{0}$ lifetime is measured to be $453.0 \pm 1.6 (stat) \pm 1.8(syst)$ $\mu$m in $J/\psi K^{*}(892)$ and $457.8 \pm 2.7(stat) \pm 2.8(syst)$ $\mu$m in $J/\psi K_{s}^{0}$, which results in a combined measurement of $c\tau_{B^{0}} = 454.1 \pm 1.4(stat) \pm 1.7(syst)$ $\mu$m. The effective lifetime of the $B_{s}^{0}$ meson is measured in two decay modes, with contributions from different amounts of the heavy and light eigenstates. This results in two different measured lifetimes: $c\tau_{B_s^{0} \to J/\psi\pi\pi} = 502.7 \pm 10.2(stat)\pm 3.4(syst)$ $\mu$m and $c\tau_{B_s^{0} \to J/\psi\phi(1020)} = 443.9 \pm 2.0(stat) \pm1.5(syst)$ $\mu$m. The $\Lambda_{b}$ lifetime is found to be $442.9 \pm 8.2(stat) \pm 2.8(syst)$ $\mu$m. The precision from each of these channels is as good as or better than previous measurements. The $B_{c}^{+}$ lifetime, measured with respect to the $B^{+}$ to reduce the systematic uncertainty, is $162.3 \pm 7.8(stat) \pm 4.2(syst) \pm 0.1\,(\tau_{B^{+}})$ $\mu$m . All results are in agreement with current world-average values.

Measurement of b hadron lifetimes in pp collisions at $\sqrt{s} =$ 8 TeV;CMS Collaboration;2020;HEPData


Abstract: No data abstract available.

Combined search for supersymmetry with photons in proton-proton collisions at $\sqrt{s}=$ 13 TeV;CMS Collaboration;2020;HEPData


Abstract: CERN-LHC. Signals consistent with the $B_{c}^{+}(2S)$ and $B_{c}^{+*}(2S)$ states are observed in proton-proton collisions at $\sqrt{s} = 13$ TeV, in an event sample corresponding to an integrated luminosity of $143$ fb$^{-1}$, collected by the CMS experiment during the 2015--2018 LHC running periods. These excited $\bar{b}c$ states are observed in the $B_{c}^{+}\pi\pi$ invariant mass spectrum, with the ground state $B_{c}^{+}$ reconstructed through its decay to $J/\psi\pi$. The two states are reconstructed as two well-resolved peaks, separated in mass by $29.1 \pm 1.5(stat) \pm 0.7(syst)$ MeV, and are observed with a significance exceeding five standard deviations. The mass of the $B_{c}^{+}(2S)$ meson is measured to be $6871.0 \pm 1.2(stat) \pm 0.8(syst) \pm 0.8 \, (B_{c})$ MeV, where the last term corresponds to the uncertainty in the world-average $B_{c}^{+}$ mass.

Observation of Two Excited B$^+_\mathrm{c}$ States and Measurement of the B$^+_\mathrm{c}$(2S) Mass in pp Collisions at $\sqrt{s} =$ 13 TeV;CMS Collaboration;2019;HEPData


Abstract: No description provided.

Measurement of the top quark mass in the all-jets final state at $\sqrt{s}=$ 13 TeV and combination with the lepton+jets channel;CMS Collaboration;2019;HEPData


Abstract: A search for nonresonant excesses in the invariant mass spectra of electron and muon pairs is presented. The analysis is based on data from proton-proton collisions at a center-of-mass energy of 13 TeV recorded by the CMS experiment in 2016, corresponding to a total integrated luminosity of $36\,\text{fb}^{-1}$. No significant deviation from the standard model is observed. Limits are set at 95% confidence level on energy scales for two general classes of nonresonant models. For a class of fermion contact interaction models, lower limits ranging from 20 to 32 TeV are set on the characteristic compositeness scale $\Lambda$. For the Arkani-Hamed, Dimopoulos, and Dvali model of large extra dimensions, the first results in the dilepton final state at 13 TeV are reported, and values of the ultraviolet cutoff parameter $\Lambda_{\text{T}}$ below 6.9 TeV are excluded. A combination with recent CMS diphoton results improves this exclusion to $\Lambda_{\text{T}}$ below 7.7 TeV, providing the most sensitive limits to date in nonhadronic final states.

Search for contact interactions and large extra dimensions in the dilepton mass spectra from proton-proton collisions at $\sqrt{s}=$ 13 TeV;CMS Collaboration;2019;HEPData


Abstract: A first search for same-sign WW production via double-parton scattering is performed based on proton-proton collision data at a center-of-mass energy of 8 TeV using dimuon and electron-muon final states. The search is based on the analysis of data corresponding to an integrated luminosity of 19.7 invfb. No significant excess of events is observed above the expected single-parton scattering yields. A 95% confidence level upper limit of 0.32 pb is set on the inclusive cross section for same-sign WW production via the double-parton scattering process. This upper limit is used to place a 95% confidence level lower limit of 12.2 mb on the effective double-parton cross section parameter, closely related to the transverse distribution of partons in the proton. This limit on the effective cross section is consistent with previous measurements as well as with Monte Carlo event generator predictions.

Constraints on the double-parton scattering cross section from same-sign W boson pair production in proton-proton collisions at $\sqrt{s} =$ 8 TeV;CMS Collaboration;2019;HEPData


Abstract: A search is presented for decays of Z and Higgs bosons to a J/$\psi$ meson and a photon, with the subsequent decay of the J/$\psi$ to $\mu\mu$. The analysis uses data from proton-proton collisions with an integrated luminosity of 35.9 fb$^{-1}$ at $\sqrt{s}$ = 13 TeV collected with the CMS detector at the LHC. The observed limit on the $Z\rightarrow J/\psi\gamma$ decay branching fraction, assuming that the J/$\psi$ meson is produced unpolarized, is $1.4\times10^{-6}$ at 95% confidence level, which corresponds to a rate higher than expected in the standard model by a factor of 15. For extreme-polarization scenarios, the observed limit changes from -13.6 to +8.6% with respect to the unpolarized scenario. The observed upper limit on the branching fraction for $H\rightarrow J/\psi\gamma$ where the J/$\psi$ meson is assumed to be transversely polarized is $7.6\times 10^{-4}$, a factor of 260 larger than the standard model prediction. The results for the Higgs boson are combined with previous data from proton-proton collisions at $\sqrt{s}$ = 8 TeV to produce an observed upper limit on the branching fraction for $H\rightarrow J/\psi\gamma$ that is a factor of 220 larger than the standard model value.

Search for rare decays of Z and Higgs bosons to J$/\psi$ and a photon in proton-proton collisions at $\sqrt{s}=$ 13 TeV;CMS Collaboration;2019;HEPData