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.

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Metadaten
Author:Marek GaździckiORCiD
URN:urn:nbn:de:hebis:30-17180
DOI:https://doi.org/10.48550/arXiv.nucl-th/9701050
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
Language:English
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
HeBIS-PPN:185274226
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoDeutsches Urheberrecht

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