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

Abstract

A measurement of the elliptic flow ($v_2$) of prompt J/$\psi$ mesons in high-multiplicity pPb collisions is reported using data collected by the CMS experiment at a nucleon-nucleon center-of-mass energy $\sqrt{s_{\mathrm{NN}}}=$ 8.16 TeV. Prompt J/$\psi$ mesons decaying into two muons are reconstructed in the rapidity region in the nucleon-nucleon center-of-mass frame ($y_{\mathrm{cm}}$), corresponding to either $-$2.86 $<y_{\mathrm{cm}}<$ $-$1.86 or 0.94 $<y_{\mathrm{cm}}<$ 1.94. The average $v_2$ result from the two rapidity ranges is reported over the transverse momentum (p${}_{\mathrm{T}}$) range from 0.2 to 10 GeV. Positive $v_2$ values are observed for the prompt J/$\psi$ meson, as extracted from long-range two-particle correlations with charged hadrons, for 2 $<p_{\mathrm{T}}<$ 8 GeV. The prompt J/$\psi$ results are compared with previous CMS measurements of elliptic flow for open charm mesons (D${}^0$) and strange hadrons. From these measurements, constraints can be obtained on the collective dynamics of charm quarks produced in high-multiplicity events arising from small systems.

arXiv commentReplaced with the published version. Added the journal reference. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/HIN-18-010 (CMS Public Pages)

References in corpus (61)

• A Brief Introduction to PYTHIA 8.1
• Collective flow and viscosity in relativistic heavy-ion collisions
• Particle-flow reconstruction and global event description with the CMS detector
• Flow Study in Relativistic Nuclear Collisions by Fourier Expansion of Azimuthal Particle Distributions
• Observation of Long-Range Near-Side Angular Correlations in Proton-Proton Collisions at the LHC
• Elliptic flow of charged particles in Pb-Pb collisions at 2.76 TeV
• Elliptic and triangular flow in event-by-event (3+1)D viscous hydrodynamics
• Description and performance of track and primary-vertex reconstruction with the CMS tracker
• Long-range angular correlations on the near and away side in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Observation of long-range near-side angular correlations in proton-lead collisions at the LHC
• Hydrodynamic Modeling of Heavy-Ion Collisions
• Hadronization in heavy ion collisions: Recombination and fragmentation of partons
• Parton coalescence and antiproton/pion anomaly at RHIC
• Event generator tunes obtained from underlying event and multiparton scattering measurements
• Performance of CMS muon reconstruction in pp collision events at sqrt(s) = 7 TeV
• Elliptic flow at large transverse momenta from quark coalescence
• Observation of Associated Near-side and Away-side Long-range Correlations in sqrt(s_NN)=5.02 TeV Proton-lead Collisions with the ATLAS Detector
• Particle-type dependence of azimuthal anisotropy and nuclear modification of particle production in Au+Au collisions at s(NN)**(1/2) = 200-GeV
• Distributions of Charged Hadrons Associated with High Transverse Momentum Particles in pp and Au+Au Collisions at sqrt(s_NN)=200 GeV
• Multiplicity and transverse-momentum dependence of two- and four-particle correlations in pPb and PbPb collisions
• Measurement of the azimuthal anisotropy for charged particle production in sqrt(s_NN) = 2.76 TeV lead-lead collisions with the ATLAS detector
• Evidence for collectivity in pp collisions at the LHC
• Scaling properties of azimuthal anisotropy in Au+Au and Cu+Cu collisions at sqrt(s_NN) = 200 GeV
• Triangular flow in hydrodynamics and transport theory
• Long-range angular correlations of $\pi$, K and p in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Observation of long-range elliptic anisotropies in $\sqrt{s}=$13 and 2.76 TeV $pp$ collisions with the ATLAS detector
• Long range rapidity correlations and jet production in high energy nuclear collisions
• Evidence for collective multi-particle correlations in pPb collisions
• Centrality dependence of dihadron correlations and azimuthal anisotropy harmonics in PbPb collisions at sqrt(s[NN]) = 2.76 TeV
• Measurement of the elliptic anisotropy of charged particles produced in PbPb collisions at nucleon-nucleon center-of-mass energy = 2.76 TeV
• High transverse momentum triggered correlations over a large pseudorapidity acceptance in Au+Au collisions at sqrt(s_NN)=200 GeV
• Novel Collective Phenomena in High-Energy Proton-Proton and Proton-Nucleus Collisions
• Hydrodynamic elliptic and triangular flow in Pb-Pb collisions at sqrt(s)=2.76ATeV
• Measurement of long-range near-side two-particle angular correlations in pp collisions at sqrt(s) = 13 TeV
• Measurements of elliptic and triangular flow in high-multiplicity ${}^3$He$+$Au collisions at $\sqrt{s_{{}_{NN}}}=200$ GeV
• Long-range and short-range dihadron angular correlations in central PbPb collisions at a nucleon-nucleon center of mass energy of 2.76 TeV
• Measurement of $D^0$ azimuthal anisotropy at mid-rapidity in Au+Au collisions at \sNN = 200\,GeV
• Azimuthal anisotropy of D meson production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Mass, quark-number, and $\sqrt{s_{NN}}$ dependence of the second and fourth flow harmonics in ultra-relativistic nucleus-nucleus collisions
• Studies of azimuthal dihadron correlations in ultra-central PbPb collisions at sqrt(s[NN]) = 2.76 TeV
• Measurement of multi-particle azimuthal correlations in $pp$, $p$+Pb and low-multiplicity Pb+Pb collisions with the ATLAS detector
• Long-range two-particle correlations of strange hadrons with charged particles in pPb and PbPb collisions at LHC energies
• Constraints on the chiral magnetic effect using charge-dependent azimuthal correlations in pPb and PbPb collisions at the LHC
• D-meson azimuthal anisotropy in mid-central Pb-Pb collisions at $\sqrt{{\mathbf{s}}_{\mathrm{NN}}}=5.02$ TeV
• Long-range pseudorapidity dihadron correlations in $d$+Au collisions at $\sqrt{s_{\mathrm{NN}}}=200$ GeV
• System size dependence of cluster properties from two-particle angular correlations in Cu+Cu and Au+Au collisions at $\sqrt{s_{{}_{NN}}}$ = 200 GeV
• Measurement of prompt D${}^0$ meson azimuthal anisotropy in PbPb collisions at $\sqrt{s_{\mathrm{NN}}}=$5.02 TeV
• Measurement of the cross section for inclusive isolated-photon production in $pp$ collisions at $\sqrt{s}=13$ TeV using the ATLAS detector
• Elliptic flow of charm and strange hadrons in high-multiplicity pPb collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}=$ 8.16 TeV
• Measurements of long-range near-side angular correlations in $\sqrt{s_{\text{NN}}}=5$TeV proton-lead collisions in the forward region
• Event activity dependence of Y(nS) production in sqrt(s[NN]) = 5.02 TeV pPb and sqrt(s) = 2.76 TeV pp collisions
• Measurement of multi-particle azimuthal correlations with the subevent cumulant method in $pp$ and $p$+Pb collisions with the ATLAS detector at the LHC
• Measurements of multiparticle correlations in $d$$+$Au collisions at 200, 62.4, 39, and 19.6 GeV and $p$$+$Au collisions at 200 GeV and implications for collective behavior
• J/$\psi$ elliptic flow in Pb-Pb collisions at $\sqrt{{\mathbf{s}}_{\mathrm{NN}}}$ = 5.02 TeV
• Observation of correlated azimuthal anisotropy Fourier harmonics in pp and pPb collisions at the LHC
• Forward-central two-particle correlations in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• In-Medium Charmonium Production in Proton-Nucleus Collisions
• Search for collectivity with azimuthal J/$\psi$-hadron correlations in high multiplicity p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 and 8.16 TeV
• Quarkonium production in ultra-relativistic nuclear collisions: suppression vs. enhancement
• Pseudorapidity and transverse momentum dependence of flow harmonics in pPb and PbPb collisions
• Pseudorapidity dependence of long-range two-particle correlations in pPb collisions at sqrt(s[NN]) = 5.02 TeV

Cited by in corpus (25)

• Heavy quarks and jets as probes of the QGP
• The Present and Future of QCD
• Measurement of ${\rm Y}(1\mathrm{S})$ elliptic flow at forward rapidity in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• On the elliptic flow of heavy quarkonia in $pA$ collisions
• Studies of charm and beauty hadron long-range correlations in pp and pPb collisions at LHC energies
• Overview of high-density QCD studies with the CMS experiment at the LHC
• Disentangle contributions to small-system collectivity via scans of light nucleus-nucleus collisions
• Dynamics of Hot QCD Matter -- Current Status and Developments
• QCD Challenges from pp to A-A Collisions
• Azimuthal correlations of prompt D mesons with charged particles in pp and p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Measurement of the prompt $D^0$ nuclear modification factor in $p$Pb collisions at $\sqrt{s_{\mathrm{NN}}}=8.16$ TeV
• Prospects for quarkonium studies at the high-luminosity LHC
• J/$\psi$ production as a function of charged-particle multiplicity in p-Pb collisions at $\sqrt{{\text{s}}_{\mathrm{NN}}}=8.16$ TeV
• Probing QGP with flow: An experimental overview
• Towards the understanding of heavy quarks hadronization: from leptonic to heavy-ion collisions
• Observation of $\Lambda$ hyperon local polarization in pPb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 8.16 TeV
• Measurements of azimuthal anisotropies at forward and backward rapidity with muons in high-multiplicity p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=8.16$ TeV
• Study of azimuthal anisotropy of ${\rm Y}$(1S) mesons in pPb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 8.16 TeV
• Search for nuclear modifications of B${}^{+}$ meson production in pPb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 8.16 TeV
• Observation of long-range collective flow in OO and NeNe collisions and implications for nuclear structure studies
• Review of results using heavy ion collisions at CMS
• Rapidity window dependence of ridge correlations in the glasma
• Multiplicity dependence of charm baryon and charm meson production in pPb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 8.16 TeV
• Recent Findings from Heavy-Flavor Angular Correlation Measurements in Hadronic Collisions
• Elliptic flow of charm quarks produced in the early stage of pA collisions