Transport coefficients from the Nambu-Jona-Lasinio model for SU(3)f - IN2P3 - Institut national de physique nucléaire et de physique des particules
Article Dans Une Revue Physical Review C Année : 2013

Transport coefficients from the Nambu-Jona-Lasinio model for SU(3)f

R. Marty
  • Fonction : Auteur
E. Bratkovskaya
  • Fonction : Auteur
W. Cassing
  • Fonction : Auteur
Joerg Aichelin
H. Berrehrah
  • Fonction : Auteur

Résumé

We calculate the shear η(T) and bulk viscosities ζ(T) as well as the electric conductivity σe(T) and heat conductivity κ(T) within the Nambu-Jona-Lasinio model for three flavors as a function of temperature as well as the entropy density s(T), pressure P(T), and speed of sound cs2(T). We compare the results with other models such as the Polyakov-Nambu-Jona-Lasinio (PNJL) model and the dynamical quasiparticle model (DQPM) and confront these results with lattice QCD data whenever available. We find the NJL model to have a limited predictive power for the thermodynamic variables and various transport coefficients above the critical temperature, whereas the PNJL model and DQPM show acceptable results for the quantities of interest.

Dates et versions

in2p3-00919710 , version 1 (28-11-2013)
in2p3-00919710 , version 2 (17-12-2013)

Identifiants

Citer

R. Marty, E. Bratkovskaya, W. Cassing, Joerg Aichelin, H. Berrehrah. Transport coefficients from the Nambu-Jona-Lasinio model for SU(3)f. Physical Review C, 2013, 88, pp.045204. ⟨10.1103/PhysRevC.88.045204⟩. ⟨in2p3-00919710v1⟩
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