Hydrodynamic flow and phase transitions in relativistic nuclear collisions reflected by Hubble type fireball evolution

摘要

In this work we present some estimations for the so-called "icro- scopic"Hubble constant for relativistic and ultrarelativistic nuclear collisions similar to cosmological Hubble constant, based on temporal connections between the evolu- tion of nuclear matter produced in relativistic heavy ion collisions and the Universe evolution after the Big Bang. The energy dependence of the evolution time and "icro- scopic"Hubble constant at chemical and thermal freeze-out has been investigated too. Estimations for Pb-Pb collisions at 2.76 TeV are also given.