Strange hadrons and their resonances: A diagnostic tool of quark-gluon plasma freeze-out dynamics

Johann Rafelski; Jean Letessier; Giorgio Torrieri

doi:10.1103/PhysRevC.64.054907

Strange hadrons and their resonances: A diagnostic tool of quark-gluon plasma freeze-out dynamics

Johann Rafelski, Jean Letessier, Giorgio Torrieri

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88 Scopus citations

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_⊥ 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.

Original language	English (US)
Article number	054907
Pages (from-to)	549071-549077
Number of pages	7
Journal	Physical Review C - Nuclear Physics
Volume	64
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevC.64.054907
State	Published - Nov 2001

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevC.64.054907

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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⊥ 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.",

author = "Johann Rafelski and Jean Letessier and Giorgio Torrieri",

year = "2001",

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AB - 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⊥ 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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Strange hadrons and their resonances: A diagnostic tool of quark-gluon plasma freeze-out dynamics

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