Open heavy flavor at RHIC and LHC in a partonic transport model

Abstract

Heavy quarks are a unique probe to study the medium produced in ultra-relativistic heavy ion collisions. Within the partonic transport model Boltzmann approach to multi-parton scatterings (BAMPS) the production, energy loss and elliptic flow of heavy quarks are investigated in 3+1 dimensional simulations of the quark gluon plasma evolution. With only binary interactions between heavy quarks and particles from the medium calculated within perturbative QCD, the results on elliptic flow and the nuclear modification factor are not compatible with experimental data from RHIC and LHC. However, if the binary cross section is multiplied with K=4 both the elliptic flow and the nuclear modification factor are simultaneously described at RHIC and also LHC. Furthermore, preliminary results are presented that the implementation of radiative processes leads to a stronger suppression which agrees well with the measured nuclear modification factor at RHIC without the need of any K factor.

6 pages, 6 figures, talk given at the conference Strangeness in Quark Matter 2011, Cracow, Poland

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Cited by in corpus (5)

• Open heavy flavor in Pb+Pb collisions at sqrt(s)=2.76 TeV within a transport model
• An Evidence of Mass Dependent Differential Kinetic Freeze-out Scenario Observed in Pb-Pb Collisions at 2.76 TeV
• Excitation functions of parameters in Erlang distribution, Schwinger mechanism, and Tsallis statistics in RHIC BES program
• Measurement of the D meson elliptic flow in Pb-Pb collisions at sqrt(s_{NN}) = 2.76 TeV with ALICE
• RHIC and LHC phenomena with an unified parton transport