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26–30 Jul 2021
Shangshan Hotel, Building 9
Asia/Shanghai timezone

QLBT: A linearized Boltzmann transport model for heavy quarks in a hot nuclear medium of quasi-particles

Not scheduled
15m
Conference Hall (Shangshan Hotel, Building 9)

Conference Hall

Shangshan Hotel, Building 9

33 Changlingnan Road, Guanshan Lake District, Guiyang, China

Speaker

峰磊 刘 (Central China Normal University)

Description

We perform a systematic study on heavy quark dynamics in relativistic heavy-ion collisions. The dynamical evolution of heavy quarks interacting with the quark-gluon plasma (QGP) is simulated via our new QLBT model, which improves the linearized Boltzmann transport (LBT) model by treating the QGP as a collection of quasi-particles. To account for the non-perturbative interactions among quarks and gluons of the hot QGP, the thermal masses of quasi-particles are fitted to decribe the equation of state from lattice QCD simulations using the Bayesian statistical analysis method. Combining QLBT model with our advanced hybrid fragmentation-coalescence hadronization approach, we calculate the nuclear modification factor $R_{AA}$ and the elliptic flow $v_2$ of $D$ mesons at RHIC and the LHC. By comparing our state-of-the-art QLBT model calculation with the experimental data on $D$ meson $R_{AA}$ and $v_2$, we extract the heavy quark diffusion coefficient $D_s$ in the temperature range of $1-4~T_c$ and compare to the values from other groups.

Primary authors

Guang-You Qin (Central China Normal University) Prof. Xin-Nian Wang (Central China Normal University/Lawrence Berkeley National Laboratory) 峰磊 刘 (Central China Normal University) 杉杉 曹 (sdu)

Co-authors

Xiang-Yu Wu (Central China Normal University) xing wenjing (Central China Normal University)

Presentation materials

There are no materials yet.