Effects of enhanced bulk viscosity near the QCD critical point

Abstract : Search for the conjectured QCD critical point is one of the major scientific goals for the Beam Energy Scan program at RHIC. The growth of the correlation length is a universal feature for systems near criticality, and bulk viscosity exhibits the strongest dependence on the correlation length. We investigate its effects using a relativistic hydrodynamic model to find that rapidity distributions of charged particles and net baryon number are visibly modified if the fireball passes through the vicinity of the QCD critical point on the phase diagram. We also discuss how critical modification of dilepton emission rate may leave imprints on invariant mass spectra.
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Pré-publication, Document de travail
t17/124. 4 pages, 6 figures - To appear in the conference proceedings for Quark Matter 2017, February 5-11.. 2017
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Contributeur : Emmanuelle De Laborderie <>
Soumis le : vendredi 21 juillet 2017 - 10:53:41
Dernière modification le : jeudi 15 mars 2018 - 15:06:06

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1704.03120.pdf
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  • HAL Id : cea-01566501, version 1
  • ARXIV : 1704.03120

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Akihiko Monnai, Swagato Mukherjee, Yi Yin. Effects of enhanced bulk viscosity near the QCD critical point. t17/124. 4 pages, 6 figures - To appear in the conference proceedings for Quark Matter 2017, February 5-11.. 2017. 〈cea-01566501〉

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