Viscous effects on the dynamical evolution of QCD matter during the first-order confinement phase transition in heavy-ion collisions

  • We investigate viscous effects on the dynamical evolution of QCD matter during the first-order phase transition, which may happen in heavy-ion collisions. We first obtain the first-order phase transition line in the QCD phase diagram under the Gibbs condition by using the MIT bag model and the hadron resonance gas model for the equation of state of partons and hadrons. The viscous pressure, which corresponds to the friction in the energy balance, is then derived from the energy and net baryon number conservation during the phase transition. We find that the viscous pressure relates to the thermodynamic change of the two-phase state and thus affects the timescale of the phase transition. Numerical results are presented for demonstrations.

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Metadaten
Author:Bohao Feng, Carsten GreinerGND, Shuzhe ShiORCiDGND, Zhe Xu
URN:urn:nbn:de:hebis:30:3-546449
DOI:https://doi.org/10.1016/j.physletb.2018.05.030
ISSN:1873-2445
ISSN:0370-2693
Parent Title (English):Physics Letters B
Publisher:Elsevier
Place of publication:Amsterdam [u.a.]
Document Type:Article
Language:English
Date of Publication (online):2018/05/15
Date of first Publication:2018/05/15
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2020/05/14
Volume:782.2018
Page Number:6
First Page:262
Last Page:267
HeBIS-PPN:465576982
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Sammlungen:Universitätspublikationen
Licence (German):License LogoCreative Commons - Namensnennung 4.0