Speaker
Description
We calculated the shear viscosity of strange and non-strange hadrons
produced in central gold-gold collisions at intermediate energies. For
calculations of the collisions the transport model UrQMD is employed.
The shear viscosity is obtained within the Green-Kubo formalism. The
hadron resonance gas model is used to determine temperature and chemical
potentials of baryon charge and strangeness out of microscopic model
calculations. Then, we determine the partial viscosity of main hadron
species, such as nucleons, pions, kaons and Lambdas. The decrease of
the beam energy from $E_{lab} = 40$~AGeV to 10~AGeV leads to rise of
baryon shear viscosity accompanied by drop of shear viscosity of mesons.
In contrast to that of non-strange hadron species, the shear viscosity
of kaons and Lambdas remains independent on energy within the studied
energy range. Its ratio over the entropy density increases with the
drop of temperature and rise of baryon chemical potential.
