R^(2)curvature-squared corrections on Langevin diffusion coefficients  

作　　者：Qi Zhou Ben-Wei Zhang 周琪;张本威(Key Laboratory of Quark&Lepton Physics(MOE)and Institute of Particle Physics,Central China Normal University,Wuhan 430079,China;Helmholtz Research Academy Hessen for FAIR(HFHF),GSI Helmholtz Center for Heavy Ion Physics.Campus Frankfurt,60438 Frankfurt,Germany;Institut für Theoretische Physik,Johann Wolfgang Goethe-Universitat,Max-von-Laue-Str.1,D-60438 Frankfurt am Main,Germany)

机构地区：[1]Key Laboratory of Quark&Lepton Physics(MOE)and Institute of Particle Physics,Central China Normal University,Wuhan 430079,China [2]Helmholtz Research Academy Hessen for FAIR(HFHF),GSI Helmholtz Center for Heavy Ion Physics.Campus Frankfurt,60438 Frankfurt,Germany [3]Institut für Theoretische Physik,Johann Wolfgang Goethe-Universitat,Max-von-Laue-Str.1,D-60438 Frankfurt am Main,Germany

出　　处：《Chinese Physics C》2025年第1期238-244,共7页中国物理C(英文版)

基　　金：supported by the Major Project of Basic and Applied Basic Research of Guangdong Province,China(2020B0301030008);the Natural Science Foundation of China with Project(11935007);the China Scholarship Council(202306770010)。

摘　　要：The effect of finite coupling corrections to the Langevin diffusion coefficients on a moving heavy quarkin the Super Yang-Mills plasma was investigated.These corrections are related to curvature squared corrections inthe corresponding gravity sector.We compared the results of both longitudinal and perpendicular Langevin diffusion coefficients with those for N=4 Super Yang-Mills plasma.It was observed that the curvature-squared corrections influence the Langevin diffusion coefficients,and the corrections for both Langevin diffusion coefficientsdemonstrate the dependence on the velocity of the moving heavy quark and the specifics of the higher derivative correction.In addition,we conducted calculations for the Langevin diffusion coefficients of a moving heavy quarkwithin the Gauss-Bonnet background.

关 键 词：jet quenching heavy ion collision QGP Langevin diffusion coefficent ads/cft highercurvature gravity momentum broadening 

分 类 号：O57[理学—粒子物理与原子核物理]