Semi-classical approach to J/ψ suppression in high energy heavy-ion collisions

14th International Conference on Strangeness in Quark Matter

Katz, R.^1 ; Gossiaux, P.B.^1

SUBATECH, CNRS/IN2P3, Université de Nantes, 4 rue Alfred Kastler, 44307 Nantes cedex 3, France^1

关键词: Heavy-quark;    High energy heavy-ion collision;    Langevin dynamics;    Quark-gluon plasma;    Semiclassical approaches;    Wigner Distribution;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/509/1/012095/pdf
DOI  :  10.1088/1742-6596/509/1/012095

来源: IOP

【 摘 要 】

We study the heavy quark/antiquark pair dynamics in strongly-coupled quark gluon plasma. A semi-classical approach, based on the Wigner distribution and Langevin dynamics, is applied to a color screened c pair, in a hydrodynamically cooling fireball, to evaluate the total Jψψ suppression at both RHIC and LHC energies. Although its limitation is observed, this approach results to a Jψψ suppression of around 0.30 at RHIC and 0.25 at LHC.