Open heavy-flavor observables at the LHC and the importance of higher-order flow harmonics

15th International Conference on Strangeness in Quark Matter

Nahrgang, Marlene^1 ; Aichelin, Jörg^2 ; Gossiaux, Pol Bernard^2 ; Werner, Klaus^2

Department of Physics, Duke University, Durham

NC

27708, United States^1

SUBATECH, UMR 6457, Université de Nantes, Ecole des Mines de Nantes, IN2P3/CNRS, 4 rue Alfred Kastler, Nantes Cedex 3

44307, France^2

关键词: Azimuthal correlations;    Collective flow;    Combined analysis;    Discriminating power;    Elliptic flows;    Nuclear modification factors;    Quark-gluon plasma;    Transport coefficient;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/668/1/012024/pdf
DOI  :  10.1088/1742-6596/668/1/012024

来源: IOP

【 摘 要 】

Heavy-quark dynamics in the quark-gluon plasma provide information about the medium properties and the details of the heavy-quark-medium interaction. Traditional observables like the nuclear modification factor and the elliptic flow of D mesons have shown suppression at intermediate and high momenta and collective flow at low momenta. Thanks to the improving accuracy of the experimental data a combined analysis of these two observables starts to have discriminating power between different heavy-quark transport coefficients or features of the energy-loss models. In this overview, we summarize the modern strategy of describing heavy-quark dynamics and show how recent advances to include more differential observables such as azimuthal correlations and higher-order flow harmonics can help us understand the properties of heavy-flavor transport.