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

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

2009-12-11

arxiv.org/abs/0912.2191v2

Phys.Atom.Nucl.74:650-658,2011

Physics

Nuclear Physics

Nuclear Theory

16 pages, 6 figures; minor clarifying changes

Scientific paper

10.1134/S1063778811040089

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.

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