A data-driven analysis of the heavy quark transport coefficient


Journal Article

© 2017 The Author(s) Using a Bayesian model-to-data analysis, we estimate the temperature dependence of the heavy quark diffusion coefficients by calibrating to the experimental data of D-meson RAA and v2 in AuAu collisions (sNN=200 GeV) and PbPb collisions (sNN=2.76 TeV) [G. Xie [STAR Collaboration], Nucl. Phys. A 956, 473 (2016); A. Andronic et al., Eur. Phys. J. C 76, no. 3, 107 (2016)]. The spatial diffusion coefficient Ds2πT is found to be mostly constraint around (1.3−1.5)Tc and is compatible with lattice QCD calculations. We demonstrate the capability of our improved Langevin model to simultaneously describe the RAA and v2 at both RHIC and the LHC energies, as well as the feasibility to apply a Bayesian analysis to quantitatively study the heavy flavor transport in heavy-ion collisions.

Full Text

Duke Authors

Cited Authors

  • Xu, Y; Nahrgang, M; Bernhard, JE; Cao, S; Bass, SA

Published Date

  • November 1, 2017

Published In

Volume / Issue

  • 967 /

Start / End Page

  • 668 - 671

International Standard Serial Number (ISSN)

  • 0375-9474

Digital Object Identifier (DOI)

  • 10.1016/j.nuclphysa.2017.05.035

Citation Source

  • Scopus