出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：The systematics of bulk entropy production in experimental data on A+A, p+ p and e+e− interactions
at high energies and large mB is discussed. It is proposed that scenarios with very
early thermalization, such as Landau’s hydrodynamical model, capture several essential features
of the experimental results. It is also pointed out that the dynamics of systems which reach the
hydrodynamic regime give similar multiplicities and angular distributions as those calculated in
weak-coupling approximations (e.g. pQCD) over a wide range of beam energies. Finally, it is
shown that the dynamics of baryon stopping are relevant to the physics of total entropy production,
explaining why A+A and e+e− multiplicities are different at low beam energies.
