Heavy Flavor Dynamics in QGP and Hadron Gas

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.

4 pages, 8 figures, proceedings of the XXIV Quark Matter conference, May 19-24 2014, Darmstadt (Germany)

References in corpus (3)

• Observation of $D^0$ meson nuclear modifications in Au+Au collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}$ = 200 GeV
• Open heavy flavor in Pb+Pb collisions at sqrt(s)=2.76 TeV within a transport model
• D-Dbar Correlations as a sensitive probe for thermalization in high-energy nuclear collisions

Cited by in corpus (3)

• Elliptic and triangular flow of heavy flavor in heavy-ion collisions
• Persistent nonequilibrium effects in generalized Langevin dynamics of nonrelativistic and relativistic particles
• Bottom quark energy loss and hadronization with B${}^{+}$ and B${}_{\mathrm{s}}^0$ nuclear modification factors using pp and PbPb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV