Inclusive, prompt and non-prompt J/$\psi$ production at mid-rapidity in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV

Abstract

The transverse momentum ($p_{\mathrm{T}}$) dependence of the nuclear modification factor $R_{\mathrm{AA}}$ and the centrality dependence of the average transverse momentum $⟨p_{\mathrm{T}}⟩$ for inclusive J/$\psi$ have been measured with ALICE for Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV in the e${}^{+}$e${}^{-}$ decay channel at mid-rapidity ($|y|<0.8$). The $⟨p_{\mathrm{T}}⟩$ is significantly smaller than the one observed for pp collisions at the same centre-of-mass energy. Consistently, an increase of $R_{\mathrm{AA}}$ is observed towards low $p_{\mathrm{T}}$. These observations might be indicative of a sizable contribution of charm quark coalescence to the J/$\psi$ production. Additionally, the fraction of non-prompt J/$\psi$ from beauty hadron decays, $f_{\mathrm{B}}$, has been determined in the region $1.5<p_{\mathrm{T}}<10$ GeV/c in three centrality intervals. No significant centrality dependence of $f_{\mathrm{B}}$ is observed. Finally, the $R_{\mathrm{AA}}$ of non-prompt J/$\psi$ is discussed and compared with model predictions. The nuclear modification in the region $4.5<p_{\mathrm{T}}<10$ GeV/c is found to be stronger than predicted by most models.

29 pages, 8 captioned figures, 5 tables authors from page 24, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/1589

References in corpus (21)

• PYTHIA 6.4 Physics and Manual
• Big-Bang Nucleosynthesis
• Heavy quarkonium: progress, puzzles, and opportunities
• The QCD equation of state with dynamical quarks
• J/psi Production vs Centrality, Transverse Momentum, and Rapidity in Au+Au Collisions at sqrt(s_NN) = 200 GeV
• Color Screening Melts Quarkonium
• A light-cone wavefunction approach to open heavy flavor dynamics in QCD matter
• Heavy-flavour spectra in high energy nucleus-nucleus collisions
• J/psi Production vs Transverse Momentum and Rapidity in p+p Collisions at sqrt(s) = 200 GeV
• Open heavy flavor in Pb+Pb collisions at sqrt(s)=2.76 TeV within a transport model
• Charmonium in Medium: From Correlators to Experiment
• Collisional dissociation of heavy mesons in dense QCD matter
• Transverse Momentum Spectra of J/ψin Heavy-Ion Collisions
• High transverse momentum quarkonium production and dissociation in heavy ion collisions
• J/psi Production in sqrt (s_NN)= 200 GeV Cu+Cu Collisions
• Measurement of prompt J/psi and beauty hadron production cross sections at mid-rapidity in pp collisions at sqrt(s) = 7 TeV
• Testing AdS/CFT Deviations from pQCD Heavy Quark Energy Loss with Pb+Pb at LHC
• Lattice Simulations of the Thermodynamics of Strongly Interacting Elementary Particles and the Exploration of New Phases of Matter in Relativistic Heavy Ion Collisions
• Heavy quark jet quenching with collisional plus radiative energy loss and path length fluctuations
• Forward hadron production in high energy pA collisions: from RHIC to LHC
• Gluon radiation by heavy quarks at intermediate energies and consequences for the mass hierarchy of energy loss

Cited by in corpus (53)

• Open Heavy Flavor in QCD Matter and in Nuclear Collisions
• The ALICE experiment: a journey through QCD
• Heavy quarks and jets as probes of the QGP
• Measurement of nuclear modification factors of ${\rm Y}$(1S), ${\rm Y}$(2S), and ${\rm Y}$(3S) mesons in PbPb collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}=$ 5.02 TeV
• Experimental overview on small collision systems at the LHC
• Suppression and azimuthal anisotropy of prompt and nonprompt J/psi production in PbPb collisions at sqrt(s[NN]) = 2.76 TeV
• Measurement of an excess in the yield of J/$\psi$ at very low $p_{\mathrm{T}}$ in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Measurement of the prompt $J/\psi$ pair production cross-section in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• Prompt and non-prompt $J/\psi$ and $\psi (2\mathrm{S})$ suppression at high transverse momentum in 5.02 TeV Pb+Pb collisions with the ATLAS experiment
• Differential studies of inclusive J/$\psi$ and $\psi$(2S) production at forward rapidity in Pb-Pb collisions at $\sqrt{{\text{s}}_{{}_{\mathbf{NN}}}}$ = 2.76 TeV
• Prompt and nonprompt J/$\psi$ production and nuclear modification in $p$Pb collisions at $\sqrt{s_{\text{NN}}}=8.16$ TeV
• Heavy-Quark Diffusion in the Quark-Gluon Plasma
• Rapidity and transverse-momentum dependence of the inclusive J/$\psi$ nuclear modification factor in p-Pb collisions at $\sqrt{{\text{s}}_{\mathbf{NN}}}=5.02$ TeV
• Heavy-ion collisions at the Large Hadron Collider: a review of the results from Run 1
• Transverse-momentum and event-shape dependence of D-meson flow harmonics in Pb-Pb collisions at $\sqrt{s_{NN}}=5.02$ TeV
• Centrality dependence of inclusive J/$\psi$ production in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• An experimental review of open heavy flavor and quarkonium production at RHIC
• Measurement of electrons from semileptonic heavy-flavour hadron decays at midrapidity in pp and Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Measurement of inclusive $J/\psi$ suppression in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV through the dimuon channel at STAR
• Centrality and transverse momentum dependence of inclusive J/$\psi$ production at midrapidity in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Measurement of electrons from heavy-flavour hadron decays in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• Measurement of D${}_s^{+}$ production and nuclear modification factor in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Measurement of the production of high-$p_{\mathrm{T}}$ electrons from heavy-flavour hadron decays in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Elliptic flow of muons from heavy-flavour hadron decays at forward rapidity in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Studies of J/$\psi$ production at forward rapidity in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Elliptic flow of electrons from heavy-flavour hadron decays at mid-rapidity in Pb-Pb collisions at $\sqrt{{\mathbf{s}}_{\mathrm{NN}}}$ = 2.76 TeV
• On similarity of jet quenching and charmonia suppression
• Properties of the QCD Matter: A Review of Selected Results from the ALICE Experiment
• Inclusive J/$\psi$ production at forward and backward rapidity in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 8.16 TeV
• An overview of experimental results from ultra-relativistic heavy-ion collisions at the CERN LHC: hard probes
• Measurement of electrons from beauty-hadron decays in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV and Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Prompt and non-prompt J/$\psi$ production and nuclear modification at mid-rapidity in p-Pb collisions at $\sqrt{s_{\text{NN}}}=5.02$ TeV
• Study of J/$\psi$ azimuthal anisotropy at forward rapidity in Pb-Pb collisions at $\sqrt{{\text{s}}_{\mathrm{NN}}}$ = 5.02 TeV
• Measurements of low-$p_{\mathrm{T}}$ electrons from semileptonic heavy-flavour hadron decays at mid-rapidity in pp and Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Quarkonium propagation in the quark gluon plasma
• Measurements of the transverse-momentum-dependent cross sections of $J/\psi$ production at mid-rapidity in proton+proton collisions at $\sqrt{s}=$ 510 and 500 GeV with the STAR detector
• Charmed meson and charmonium production in PbPb collisions at the LHC
• Measurement of cold nuclear matter effects for inclusive $J/\psi$ in $p$+Au collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}$ = 200 GeV
• Measurement of electrons from heavy-flavour hadron decays as a function of multiplicity in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• ALICE overview
• Inclusive, prompt and non-prompt $\mathrm{J}/\psi$ identification in proton-proton collisions at the Large Hadron Collider using machine learning
• INFN What Next: Ultra-relativistic Heavy-Ion Collisions
• Probing the mass effect of heavy quark jets in high-energy nuclear collisions
• Inclusive, prompt and non-prompt $\mathrm{J}/\psi$ production at midrapidity in p$-$Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• Prospects for quarkonium measurements in p--A and A--A collisions at the LHC
• Charmonium production in Pb-Pb collisions with ALICE at the LHC
• Charmonium production at mid-rapidity in Pb-Pb and p-Pb collisions with ALICE
• Production of leptons from decay of heavy-flavor hadrons in high-energy nuclear collisions
• Measurement of inclusive $J/\psi$ production in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}=54.4$ GeV at STAR
• Recent Heavy Flavor Results Utilizing the FVTX in PHENIX at RHIC
• Topological production of charmonia with event-shape engineering in $pp$ collisions at $\sqrt{s}=13$ TeV using PYTHIA8
• Excitation function Analysis for Charmonium Production in Heavy-Ion Collisions
• Experimental summary for heavy flavor production