High transverse momentum quarkonium production and dissociation in heavy ion collisions

2012/03/31 by Rishi Sharma, Ivan Vitev · 129 citations
Physics and Astronomy · #Hadron #Heavy ion #High-Energy Particle Collisions Research #Ion #Large Hadron Collider #Nuclear matter #Nuclear physics #Nucleon #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quarkonium #Quark–gluon plasma #Relativistic Heavy Ion Collider #hep-ph #nucl-ex #nucl-th

paper · pdf · doi:10.1103/physrevc.87.044905

published in Physical Review C 87(4) (American Institute of Physics) · 29 pages, 32 eps figures, matrix element fitting details and color-octet component quenching added, version to be published in Physical Review C

arxiv created 2013/03/27 · openalex publication_date 2013/04/15 · arxiv updated 2013/04/18 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We calculate the yields of quarkonia in heavy ion collisions at the BNL Relativistic Heavy Ion Collider (RHIC) and the CERN Large Hadron Collider (LHC) as a function of their transverse momentum. Based upon nonrelativistic quantum chromodynamics, our results include both color-singlet and color-octet contributions and feed-down effects from excited states. In reactions with ultrarelativistic nuclei, we focus on the consistent implementation of dynamically calculated nuclear matter effects, such as coherent power corrections, cold nuclear matter energy loss, and the Cronin effect in the initial state. In the final state, we consider radiative energy loss for the color-octet state and collisional dissociation of quarkonia as they traverse through the QGP. Theoretical results are presented for J/\ensuremathψ and \ensuremathΥ and compared to experimental data where applicable. At RHIC, a good description of the high-p_T J/\ensuremathψ modification observed in central Cu+Cu and Au+Au collisions can be achieved within the model uncertainties. We find that measurements of J/\ensuremathψ yields in proton-nucleus reactions are needed to constrain the magnitude of cold nuclear matter effects. At the LHC, a good description of the experimental data can be achieved only in midcentral and peripheral Pb+Pb collisions. The large fivefold suppression of prompt J/\ensuremathψ in the most central nuclear reactions may indicate for the first time possible thermal effects at the level of the quarkonium wave function at large transverse momenta.

Citations

• ThermalΥ(1s)andχb1Suppression at(sNN)=2.76 TeVPb-Pb Collisions at the LHC
• J/ΨProduction inppCollisions ats=200 GeVat the BNL Relativistic Heavy Ion Collider
• The thermal width of heavy quarkonia moving in quark–gluon plasma
• On dissociation of heavy mesons in a hot quark–gluon plasma
• On multiple scatterings of mesons in hot and cold QCD matter
• Color-octet quarkonia production. II
• Sequential charmonium dissociation
• Light-cone wave function approach to open heavy flavor dynamics in QCD matter
• Measurement of theJ/ψmeson andb-hadron production cross sections inpp¯collisions ats=1960 GeV
• Review of Particle Physics
• World data ofJ/ψproduction consolidate nonrelativistic QCD factorization at next-to-leading order

Cited by

• Collisional and thermal dissociation of J/ψ and ϒ states at the LHC
• An experimental review of open heavy flavor and quarkonium production at RHIC
• Interaction potential between heavy QQ¯ in a color octet configuration in the QGP from a study of hybrid Wilson loops
• Cos(2φ_h) asymmetry in J/ψ production in unpolarized ep collision.
• Extracting color octet NRQCD matrix elements from J/ψ production at the EIC
• ηQ Meson Photoproduction in Ultrarelativistic Heavy Ion Collisions
• The fate of the weakly-bound ψ(2s) in nuclear matter