The influence of initial state fluctuations on heavy quark energy loss in relativistic heavy-ion collisions


Journal Article

© 2015 IOP Publishing Ltd. We study the effects of initial state fluctuations on the dynamical evolution of heavy quarks inside a quark-gluon plasma (QGP) created in relativistic heavy-ion collisions. The evolution of heavy quarks in QGP matter is described utilizing a modified Langevin equation that incorporates the contributions from both collisional and radiative energy loss. The spacetime evolution of the fireball medium is simulated with a (2 + 1)-dimensional viscous hydrodynamic model. We find that when the medium traversed by the heavy quark contains a fixed amount of energy, heavy quarks tend to lose more energy for greater fluctuations of the medium density. This may result in a larger suppression of heavy flavor observables in a fluctuating QGP matter than in a smooth one. The possibility of using hard probes to infer the information of initial states of heavy-ion collisions is discussed.

Full Text

Duke Authors

Cited Authors

  • Cao, S; Huang, Y; Qin, GY; Bass, SA

Published Date

  • November 17, 2015

Published In

Volume / Issue

  • 42 / 12

Electronic International Standard Serial Number (EISSN)

  • 1361-6471

International Standard Serial Number (ISSN)

  • 0954-3899

Digital Object Identifier (DOI)

  • 10.1088/0954-3899/42/12/125104

Citation Source

  • Scopus