Open heavy flavor and J/psi at RHIC and LHC

Abstract

The suppression and collective flow of open and hidden heavy flavor in ultra-relativistic heavy ion collisions is studied with the partonic transport model Boltzmann Approach to MultiParton Scatterings (BAMPS). Charm and bottom quarks interact with the rest of the medium via elastic scatterings with an improved Debye screening and a running coupling. Heavy flavor electron data from RHIC can only be described if the cross section is multiplied with K=3.5 to mimic the contribution from radiative processes. With the same value for K we compare to elliptic flow data of D mesons at the LHC and find a good agreement. However, the nuclear modification factor of D mesons, non-prompt J/psi, muons, and electrons at the LHC is underestimated in our calculations. In addition, we present first BAMPS results on the suppression and elliptic flow of J/psi mesons, which are treated in the same framework.

4 pages, 3 figures, minor text modifications in version 2, Proceedings for Hard Probes 2012, Cagliari, Italy

References in corpus (5)

• J/psi Production vs Centrality, Transverse Momentum, and Rapidity in Au+Au Collisions at sqrt(s_NN) = 200 GeV
• Towards an understanding of the RHIC single electron data
• Color Screening Melts Quarkonium
• Transport rates and momentum isotropization of gluon matter in ultrarelativistic heavy-ion collisions
• Heavy quarks at RHIC and LHC within a partonic transport model

Cited by in corpus (7)

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• Heavy Quark Production and Energy Loss
• Nonequilibrium photon production in partonic transport simulations
• Nuclear suppression of light hadrons and single electrons at RHIC and LHC
• Electric Conductivity of a hot hadron gas from a kinetic approach
• Flow of strange and charm particles in Pb--Pb collisions at sqrt{s_{NN}} = 2.76 TeV measured with ALICE