Strange hadrons and their resonances: A diagnostic tool of quark-gluon plasma freeze-out dynamics - art. no. 054907

Authors
Rafelski, J Letessier, J Torrieri, G
Citation
J. Rafelski et al., Strange hadrons and their resonances: A diagnostic tool of quark-gluon plasma freeze-out dynamics - art. no. 054907, PHYS REV C, 6405(5), 2001, pp. 4907
Citations number
44
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW C
ISSN journal
05562813 → ACNP
Volume
6405
Issue
5
Year of publication
2001
Database
ISI
SICI code
0556-2813(200111)6405:5<4907:SHATRA>2.0.ZU;2-E
Abstract
We update our chemical analysis of (strange) hadrons produced at the SPS in Pb-Pb collisions at 158A GeV and discuss chemical analysis of RHIC results . We report that the shape of (anti)hyperon m(perpendicular to) spectra in a thermal freeze-out analysis leads to freeze-out conditions found in chemi cal analysis, implying sudden strange-hyperon production. We discuss how a combined analysis of several strange-hadron resonances of differing lifespa n can be used to understand the dynamical process present during chemical a nd thermal freeze-outs. In medium resonance quenching is considered.