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arXiv · 1408.0503

Heavy Flavor Dynamics in QGP and Hadron Gas

Shanshan Cao·Guang-You Qin·Steffen Bass
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Abstract

We study heavy flavor evolution in the quark-gluon plasma matter and the subsequent hadron gas created in ultrarelativistic heavy-ion collisions. The motion of heavy quarks inside the QGP is described using our modified Langevin framework that incorporates both collisional and radiative energy loss mechanisms; and the scatterings between heavy mesons and the hadron gas are simulated with the UrQMD model. We find that the hadronic interaction further suppresses the $D$ meson $R_\mathrm{AA}$ at high $p_\mathrm{T}$ and enhances its $v_2$. And our calculations provide good descriptions of experimental data from both RHIC and LHC. In addition, we explore the heavy-flavor-tagged angular correlation functions and find them to be a potential candidate for distinguishing different energy loss mechanisms of heavy quarks inside the QGP.

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Shanshan Cao, Guang-You Qin, Steffen Bass. 2014-08-03. Heavy Flavor Dynamics in QGP and Hadron Gas. https://doi.org/10.1016/j.nuclphysa.2014.09.011

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