Strange hadron resonances as a signature of freeze-out dynamics

We study the production and the observability of Λ ∗(1520) , K ∗0(892) , and Σ ∗(1385) , strange hadron resonances as function of the freeze-out conditions within the statistical model of hadron production. We obtain an estimate of how many decay products are rescattered in evolution towards thermal...

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Bibliographic Details
Published inPhysics letters. B Vol. 509; no. 3; pp. 239 - 245
Main Authors Torrieri, Giorgio, Rafelski, Johann
Format Journal Article
LanguageEnglish
Published Elsevier B.V 14.07.2001
Subjects
24.10.Pa
25.75.-q
12.38.Mh
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Summary:We study the production and the observability of Λ ∗(1520) , K ∗0(892) , and Σ ∗(1385) , strange hadron resonances as function of the freeze-out conditions within the statistical model of hadron production. We obtain an estimate of how many decay products are rescattered in evolution towards thermal freeze-out following chemical freeze-out, and find that the resonance decay signal is strong enough to be detected. We show how a combined analysis of at least two resonances can be used to understand the chemical freeze-out temperature, and the time between chemical and thermal freeze-outs.
ISSN:0370-2693
1873-2445
DOI:10.1016/S0370-2693(01)00492-0