What do we learn from resonance production in heavy ion collisions?

E Markert, John Adams, Lee Barnby, CO Blyth, Leon Gaillard, Peter Jones, John Nelson

Research output: Contribution to journalArticle


The resonance production of Δ, K(892), Σ(1385), Λ(1520) and φ from elementary p+p and Au+Au collisions at √{sNN} = 200 GeV from the STAR experiment at RHIC is presented. Yields and spectra are discussed in terms of chemical and thermal freeze-out conditions. Thermal models do not describe sufficiently the yields of the resonance production in central Au+Au collisions. The approach which includes pseudo-elastic and elastic hadronic interactions after chemical freeze-out until thermal freeze-out suggests a time span of Δτ > 5 fm/c.
Original languageEnglish
Pages (from-to)175-180
Number of pages6
JournalActa Physica Hungarica. A. Heavy Ion Physics
Issue number1-4
Publication statusPublished - 1 Oct 2005
EventQuark Matter 2005: International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, 18th - Budapest, Hungary
Duration: 4 Aug 20059 Aug 2005


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