arXiv subjects
Publications and source records attributed to Dariusz Prorok.
We calculate the velocity of sound in an ideal gas of massive hadrons with non-vanishing baryon number. The gas is in thermal and chemical equilibrium. Also we show that the temperature dependence $T(τ) \cong T_{0} \cdot ({τ_{0} \over τ})^{c_{s}^{2}}$ is approximately valid, when the gas expands longitudinally according to the Bjorken law.
We consider an ideal gas of massive hadrons in thermal and chemical equilibrium. The finite-size gas expands longitudinally in accordance with Bjorken law. Also the transverse expansion in a form of the rarefaction wave is considered. We show that J/Psi suppression in such an environment, when combined with the disintegration in nuclear matter, agrees qualitatively well with NA38 and NA50 data.
We consider an ideal gas of massive hadrons in thermal and chemical equilibrium. The gas expands longitudinally in an adiabatic way. This evolution for a baryonless gas reduces to a hydrodynamic expansion. Cooling process is parametrized by the sound velocity. The sound velocity is temperature dependent and is strongly influenced by hadron mass spectrum.