Pion and strangeness production as signals of QCD phase transition

  • It is shown that data on pion and strangeness production in central nucleus-nucleus collisions are consistent with the hypothesis of a Quark Gluon Plasma formation between 15 A GeV/c (BNL AGS) and 160 A GeV/c (CERN SPS) collision energies. The experimental results interpreted in the framework of a statistical approach indicate that the effective number of degrees of freedom increases by a factor of about 3 in the course of the phase transition and that the plasma created at CERN SPS energy may have a temperature of about 280 MeV (energy density $\approx$ 10 GeV/fm^3). Experimental studies of central Pb+Pb collisions in the energy range 20-160 A GeV/c are urgently needed in order to localize the threshold energy, and study the properties of the QCD phase transition.

Download full text files

Export metadata

Additional Services

Share in Twitter Search Google Scholar
Author:Marek GaździckiORCiD
ArXiv Id:http://arxiv.org/abs/nucl-th/9701050
Parent Title (German):IKF–HENPG ; 1–97
Series (Serial Number):IKF–HENPG (1–97)
Publisher:Institut für Kernphysik, Goethe-Universität Frankfurt
Place of publication:Frankfurt am Main
Document Type:Working Paper
Date of Publication (online):1997/02/19
Date of first Publication:1997/02/19
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2005/09/30
Page Number:8
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoDeutsches Urheberrecht