Journal
PHYSICAL REVIEW C
Volume 89, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.89.054911
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Funding
- NSFC
- MOST
- DOE [11221504, 11335005, 11275103, 2013CB922000, 2014CB845400, DE-AC03-76SF00098]
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We investigate with a transport approach the cold and hot nuclear matter effects on the charmonium transverse momentum distributions in relativistic heavy ion collisions. The newly defined nuclear modification factor r(AA) = < p(T)(2)>(AA)/< p(T)(2)>(pp) and elliptic flow v(2) for J/psi are sensitive to the nature of the hot medium and the thermalization of heavy quarks. From Super Proton Synchrotron (SPS) through Relativistic Heavy Ion Collider (RHIC) to Large Hadron Collider (LHC) colliding energies, we observe dramatic changes in the centrality dependence of r(AA). We find that, at LHC energy, the finally observed charmonia are dominated by the regeneration from thermalized heavy quarks.
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