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

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$$R_\mathrm {AA}$$RAAand the elliptic flow$$v_2$$v2ofDmesons at the Relativistic Heavy-Ion Collider and the Large Hadron Collider. By comparing our QLBT calculation to the experimental data on theDmeson$$R_\mathrm {AA}$$RAAand$$v_2$$v2, we extract the heavy quark transport parameter$$\hat{q}$$q^and diffusion coefficient$$D_\mathrm {s}$$Dsin the temperature range of$$1-4~T_\mathrm {c}$$1-4Tc, and compare them with the lattice QCD results and other phenomenological studies.

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Publisher / Repository:
Springer Science + Business Media
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Journal Name:
The European Physical Journal C
Medium: X
Sponsoring Org:
National Science Foundation
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