Heavy flavor electron RAA and υ2 in event-by-event relativistic hydrodynamics

8th International Workshop on Hadron Physics

Prado, Caio A. G.^1 ; Cosentino, Mauro R.^1,2 ; Munhoz, Marcelo G.^1 ; Noronha, Jorge^1,3 ; Suaide, Alexandre A. P.^1

Instituto de Física, Universidade de São Paulo, C.P. 66318, São Paulo, SP

05315-970, Brazil^1

Centro de Ciências Naturais e Humanas, Universidade Federal Do ABC, Av. dos Estados 5001, Bairro Santa Terezina, Santo André, SP

09210-508, Brazil^2

Department of Physics, Columbia University, 538 West 120th Street, New York

NY

10027, United States^3

关键词: Electron yield;    Fourier harmonics;    Freeze out temperature;    Hydrodynamic codes;    Local temperature;    Parametrizations;    Relativistic hydrodynamics;    Strong coupling;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/706/5/052005/pdf
DOI  :  10.1088/1742-6596/706/5/052005

来源: IOP

【 摘 要 】

In this work we investigate how event-by-event hydrodynamics fluctuations affect the nuclear suppression factor and elliptic flow of heavy flavor mesons and non-photonic electrons. We use a 2D+1 Lagrangian ideal hydrodynamic code [1, 2] on an event-by-event basis in order to compute local temperature and flow profiles. Using a strong coupling inspired energy loss parametrization [3] on top of the evolving space-time energy density distributions we are able to propagate the heavy quarks inside the medium until the freeze-out temperature is reached and a Pythia [4] modeling of hadronization takes place. The resulting D0and heavy-flavor electron yield is compared with recent experimental data for RAAand υ2from the STAR and PHENIX collaborations [5-7]. In addition we present preditions for the higher order Fourier harmonic coefficients υ3(pt) of heavy-flavor electrons at Rhic's √SNNcollisions.