Heavy quark energy loss and angular de-correlation in a quark-gluon plasma matter

Workshop for Young Scientists on the Physics of Ultrarelativistic Nucleus–Nucleus Collisions 2012

Cao, Shanshan^1 ; Qin, Guang-You^1 ; Bass, Steffen A.^1 ; Müller, Berndt^1

Department of Physics, Duke University, Durham, NC 27708, United States^1

关键词: Angular correlations;    De correlations;    Energy loss mechanisms;    Heavy quark energy loss;    Hydrodynamic model;    Langevin equation;    Quark-gluon plasma matter;    Quasielastic scattering;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/446/1/012035/pdf
DOI  :  10.1088/1742-6596/446/1/012035

来源: IOP

【 摘 要 】

We study heavy quark energy loss in a hot and dense nuclear matter in the framework of Langevin equation coupled to a (2+1)-dimensional hydrodynamic model. The classical Langevin framework is modified such that both quasi-elastic scattering and gluon radiation are incorporated. We provide good description of D meson suppression measured by the ALICE collaboration. We further investigate the angular correlation function of c pairs, and find that it can be potentially employed to distinguish different energy loss mechanisms of heavy quarks inside QGP.