Heavy quark dynamics in QCD matter

16th International Conference on Strangeness in Quark Matter

Das, S.K.^1 ; Scardina, F.^1,2 ; Plumari, S.^1,2 ; Greco, V.^1,2

Department of Physics and Astronomy, University of Catania, Via S. Sofia 64, Catania

I-95125, Italy^1

Laboratori Nazionali Del Sud, INFN-LNS, Via S. Sofia 62, Catania

I-95123, Italy^2

关键词: Boltzmann collision integral;    Directed flow;    Elliptic flows;    External electromagnetic field;    Heavy-quark;    Large parts;    Nuclear modification factors;    Temperature dependence;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/779/1/012031/pdf
DOI  :  10.1088/1742-6596/779/1/012031

来源: IOP

【 摘 要 】

Simultaneous description of heavy quark nuclear modification factor RAAand the elliptic flow v2is a top challenge for all the existing models. We highlight how the temperature dependence of the energy loss/transport coefficients is responsible for addressing a large part of such a puzzle along with the full solution of the Boltzmann collision integral for the momentum evolution of heavy quarks in the medium. We consider four different models to evaluate the temperature dependence of drag coefficients of the heavy quark in the QGP. We have also highlighted the heavy quark dynamics in the presence of an external electromagnetic field which induces a sizable heavy quark directed flow, v1(y), that can be measurable at LHC.