Viscosity of hadron matter within relativistic mean-field based model with scaled hadron masses and couplings

Abstract

The shear ($\eta$) and bulk ($\zeta$) viscosities are calculated in a quasiparticle relaxation time approximation for a hadron matter described within the relativistic mean-field based model with scaled hadron masses and couplings. Comparison with results of other models is presented. We demonstrate that a small value of the shear viscosity to entropy density ratio required for explaining a large elliptic flow observed at RHIC may be reached in the hadron phase. Large values of the bulk viscosity are noted in case of the baryon enriched matter.

16 pages, 6 figures; minor clarifying changes

References in corpus (6)

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• Bulk viscosity in quasi particle models
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Cited by in corpus (7)

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• Transport coefficients of gluonic fluid
• Structure formation during phase transitions in strongly interacting matter
• Relaxation time ansatz and shear and bulk viscosities of gluon matter
• Remarks concerning bulk viscosity of hadron matter in relaxation time ansatz