Strange hadrons and their resonances: A diagnostic tool of quark-gluon plasma freeze-out dynamics
- 19 October 2001
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review C
- Vol. 64 (5) , 054907
- https://doi.org/10.1103/physrevc.64.054907
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 spectra in a thermal freeze-out analysis leads to freeze-out conditions found in chemical analysis, implying sudden strange-hyperon production. We discuss how a combined analysis of several strange-hadron resonances of differing lifespan can be used to understand the dynamical process present during chemical and thermal freeze-outs. In medium resonance quenching is considered.
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