Resonances do not equilibrate

Inga Kuznetsova; Jean Letessier; Jan Rafelski

Resonances do not equilibrate

Inga Kuznetsova, Jean Letessier, Jan Rafelski

Physics

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

We discuss, in qualitative and quantitative fashion, the yields of hadron resonances. We show that these yields, in general, are not in chemical equilibrium. We evaluate the non-equilibrium abundances in a dynamic model implementing the 1 + 2 ↔ 3 resonance formation reactions. Due to the strength of these reactions, we show the Σ(1385) enhancement, and the Λ(1520) suppression explicitly.

Original language	English (US)
Pages (from-to)	1013-1024
Number of pages	12
Journal	Acta Physica Polonica B
Volume	40
Issue number	4
State	Published - Apr 1 2009

ASJC Scopus subject areas

Physics and Astronomy(all)

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abstract = "We discuss, in qualitative and quantitative fashion, the yields of hadron resonances. We show that these yields, in general, are not in chemical equilibrium. We evaluate the non-equilibrium abundances in a dynamic model implementing the 1 + 2 ↔ 3 resonance formation reactions. Due to the strength of these reactions, we show the Σ(1385) enhancement, and the Λ(1520) suppression explicitly.",

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