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Title: QLBT: a linear Boltzmann transport model for heavy quarks in a quark-gluon plasma of quasi-particles

Journal Article · · European Physical Journal. C, Particles and Fields (Online)

Abstract We develop a new heavy quark transport model, QLBT, to simulate the dynamical propagation of heavy quarks inside the quark-gluon plasma (QGP) created in relativistic heavy-ion collisions. Our QLBT model is based on the linear Boltzmann transport (LBT) model with the ideal QGP replaced by 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 the equation of state from lattice QCD simulations using the Bayesian statistical analysis method. Combining QLBT with our advanced hybrid fragmentation-coalescence hadronization approach, we calculate the nuclear modification factor $$$$R_\mathrm {AA}$$$$ R AA and the elliptic flow $$$$v_2$$$$ v 2 of D mesons at the Relativistic Heavy-Ion Collider and the Large Hadron Collider. By comparing our QLBT calculation to the experimental data on the D meson $$$$R_\mathrm {AA}$$$$ R AA and $$$$v_2$$$$ v 2 , we extract the heavy quark transport parameter $$$$\hat{q}$$$$ q ^ and diffusion coefficient $$$$D_\mathrm {s}$$$$ D s in the temperature range of $$$$1-4~T_\mathrm {c}$$$$ 1 - 4 T c , and compare them with the lattice QCD results and other phenomenological studies.

Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1864095
Journal Information:
European Physical Journal. C, Particles and Fields (Online), Journal Name: European Physical Journal. C, Particles and Fields (Online) Journal Issue: 4 Vol. 82; ISSN 1434-6052
Publisher:
Springer Science + Business MediaCopyright Statement
Country of Publication:
Germany
Language:
English

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