Heavy-quark binary scattering in the quark-gluon plasma

International Workshop on Discovery Physics at the LHC 2012

Peshier, A.^1

University of Cape Town, Physics Department, Rondebosch 7700, South Africa^1

关键词: Collisional energy loss;    Heavy ion collision;    Heavy-quark;    Quark-gluon plasma;    Scattering process;    Thermal background;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/455/1/012054/pdf
DOI  :  10.1088/1742-6596/455/1/012054

来源: IOP

【 摘 要 】

I argue that the strong quenching and the sizable anisotropy of heavy quark flavors observed in heavy-ion collisions has a substantial component from binary scattering processes in the quark-gluon plasma. To arrive at this conclusion, I illustrate essential requirements for a more accurate theoretical description by considering first the average collisional energy loss of heavy quarks in a thermal background. On this basis, I describe a consistent transport approach, formulating the in-medium evolution of heavy quarks as a stochastic Markov process, which has been implemented for applications in heavy-ion phenomenology.