Strange hadron resonances as a signature of freeze-out dynamics

Giorgio Torrieri, Johann Rafelski

Research output: Contribution to journalArticlepeer-review

119 Scopus citations


We study the production and the observability of Λ*(1520), Κ*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.

Original languageEnglish (US)
Pages (from-to)239-245
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number3-4
StatePublished - Jul 14 2001

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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