Elliptic flow as a probe for the ψ(2S) production mechanism in relativistic heavy ion collisions

Baoyi Chen
Phys. Rev. C 95, 034908 – Published 20 March 2017

Abstract

I discuss the elliptic flows of ψ(2S) with different production mechanisms in sNN=2.76 TeV Pb-Pb collisions. If the final ψ(2S)s are mainly from the recombination of uncorrelated charm and anticharm quarks at TTc, charm and anticharm quarks will carry large collective flows of the bulk medium, which will be inherited by the regenerated ψ(2S)s. This indicates a larger elliptic flow of ψ(2S) than that of J/ψ which can be regenerated at TTc, v2ψ(2S)>v2J/ψ. However, if the final ψ(2S)s are mainly from the transitions of J/ψψ(2S) caused by the color screening of quark-gluon plasma its elliptic flow should be close to the elliptic flow of J/ψ, v2ψ(2S)v2J/ψ. Therefore, ψ(2S) elliptic flow is a sensitive probe for its production mechanisms in relativistic heavy ion collisions.

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  • Received 15 August 2016
  • Revised 10 December 2016

DOI:https://doi.org/10.1103/PhysRevC.95.034908

©2017 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

Baoyi Chen*

  • Department of Physics, Tianjin University, Tianjin 300352, China

  • *baoyi.chen@tju.edu.cn

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Issue

Vol. 95, Iss. 3 — March 2017

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