Directed flow of open charm in Au+Au collisions at sNN=200 GeV using a quark coalescence model

Md Nasim and Subhash Singha
Phys. Rev. C 97, 064917 – Published 25 June 2018

Abstract

The directed flow (v1) of open charm meson (D0) is studied in Au+Au collisions at sNN=200 GeV using a multiphase transport model framework with partonic interactions (string melting version). Within this framework, it is found that although the initial spatial eccentricity (ε1) of charm quark is smaller than light quarks, the charm quark v1 magnitude is found to be approximately seven times larger than that of the light u quark at large rapidity. This indicates that the charm quarks can retain more information from initial condition than the light quarks. We have studied the directed flow of D0 as a function of rapidity and transverse momentum using quark coalescence as the mechanism for hadron production. Like the charm quark, the D0v1 magnitude is found to be about seven times larger than that of the light (π) hadrons at large rapidity.

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  • Received 3 February 2018
  • Revised 4 June 2018

DOI:https://doi.org/10.1103/PhysRevC.97.064917

©2018 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

Md Nasim1 and Subhash Singha2

  • 1Department of Physics, Indian Institute of Science Education and Research, Berhampur, Odisha-760010, India
  • 2Department of Physics, Kent State University, Ohio 44242, USA

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Issue

Vol. 97, Iss. 6 — June 2018

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