Valeriya Mykhaylova

Shear viscosity of the QGP from the relaxation time approximation within the quasiparticle model

There are experimental evidences that the quark-gluon plasma (QGP) produced in the heavy-ion collisions, is well described in terms of ideal hydrodynamics [1]. However, for more realistic interpretation, the dissipative viscous processes should be taken into account. One of the parameters describing the dissipation of the energy is a shear viscosity, which I have obtained using the relaxation time approximation to the Boltzmann equation. The calculations are performed within the quasiparticle model, in which quarks and gluons have changing (dynamical) masses obtained from the lattice QCD data [2]. [1] E. Shuryak, Prog. Part. Nucl. Phys. 53 (2004) [2] S. Borsanyi et al., Phys. Lett. B 370 (2014) 99-104