Effective distributions of quasiparticles for thermal photons

Akihiko Monnai
Phys. Rev. C 92, 014905 – Published 13 July 2015

Abstract

It has been found in recent heavy-ion experiments that the second and the third flow harmonics of direct photons are larger than most theoretical predictions. In this study, I construct effective parton phase-space distributions with in-medium interaction using quasiparticle models so that they are consistent with a lattice QCD equation of state. Then I investigate their effects on thermal photons using a hydrodynamic model. Numerical results indicate that elliptic flow and transverse momentum spectra are modified by the corrections to Fermi-Dirac and Bose-Einstein distributions.

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  • Received 13 April 2015
  • Revised 16 June 2015

DOI:https://doi.org/10.1103/PhysRevC.92.014905

©2015 American Physical Society

Authors & Affiliations

Akihiko Monnai*

  • RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973, USA

  • *amonnai@riken.jp

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Vol. 92, Iss. 1 — July 2015

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