Eur. Phys. J. A (2017) 53: 205
https://doi.org/10.1140/epja/i2017-12400-9

Regular Article - Theoretical Physics

Jet energy loss in quark-gluon plasma: Kinetic theory with a Bhatnagar-Gross-Krook collisional kernel

¹ Key Laboratory of Quark and Lepton Physics (MOE) and Institute of Particle Physics, Central China Normal University, 430079, Wuhan, Hubei, China
² Center for Theoretical Physics and School of Sciences, Hubei University for Nationalities, 445000, Enshi, Hubei, China

^* e-mail: jiangbf@mails.ccnu.edu.cn

Received: 3 August 2017
Accepted: 29 September 2017
Published online: 24 October 2017

Abstract

The dielectric functions , of the quark-gluon plasma (QGP) are derived within the framework of the kinetic theory with BGK-type collisional kernel. The collision effect manifested by the collision rate is encoded in the dielectric functions. Based on the derived dielectric functions we study the collisional energy loss suffered by a fast parton traveling through the QGP. The numerical results show that the collision rate increases the energy loss.