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.

arXiv comment4 pages, 8 figures, proceedings of the XXIV Quark Matter conference, May 19-24 2014, Darmstadt (Germany)

References in corpus (15)

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Cited by in corpus (8)

• Heavy-flavour and quarkonium production in the LHC era: from proton-proton to heavy-ion collisions
• Measurement of the B+/- meson nuclear modification factor in PbPb collisions at sqrt(s[NN]) = 5.02 TeV
• Elliptic and triangular flow of heavy flavor in heavy-ion collisions
• Modeling of heavy-flavor pair correlations in Au-Au collisions at 200 A GeV at the BNL Relativistic Heavy Ion Collider
• Charmed meson and charmonium production in PbPb collisions at the LHC
• Energy loss of heavy quarks and $B$ and $D$ meson spectra in PbPb collisions at LHC energies
• 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