Bjorken hydrodynamics and gradual freeze out

The freeze out of the expanding systems, created in relativistic heavy ion collisions, is discussed. We combine kinetic freeze out equations with Bjorken type system expansion into a unified model. The important feature of the proposed scenario is that physical freeze out is completely finished in a finite time, which can be varied from 0 (freeze out hypersurface) to infinit. The dependence of the post freeze out distribution function on the freeze out time will be studied. Model allows analytical analyses for the simplest systems such as pion gas. We shall see that the basic freeze out features, pointed out in the earlier works, are not smeared out by the expansion of the system. The entropy evolution in such a scenario is also studied.

Metadaten
Verfasserangaben:	Volodymyr Magas ORCiD, László Pal Csernai ORCiD GND, Etele Molnár ORCiD
URN:	urn:nbn:de:hebis:30-45330
Titel des übergeordneten Werkes (Deutsch):	Proceedings of Science, Critical Point and Onset of Deconfinement, July 3 - 6 2006, Florence, Italy
Dokumentart:	Wissenschaftlicher Artikel
Sprache:	Englisch
Jahr der Fertigstellung:	2006
Jahr der Erstveröffentlichung:	2006
Veröffentlichende Institution:	Universitätsbibliothek Johann Christian Senckenberg
Datum der Freischaltung:	14.06.2007
Jahrgang:	031
Ausgabe / Heft:	CPOD2006)
Bemerkung:	Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
Quelle:	Proceedings of Science (CPOD2006)031. - Critical Point and Onset of Deconfinement, July 3 - 6 2006, Florence, Italy
HeBIS-PPN:	188845151
Institute:	Physik / Physik
DDC-Klassifikation:	5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Lizenz (Deutsch):	Deutsches Urheberrecht

Open Access