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Resonances Do Not Equilibrate

Authors
  • Kuznetsova, I.
  • Letessier, J.
  • Rafelski, J.
Type
Published Article
Publication Date
Feb 15, 2009
Submission Date
Feb 15, 2009
Source
arXiv
License
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External links

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 $1+2\leftrightarrow 3$ resonance formation reactions. Due to the strength of these reactions, we show the $\Sigma(1385)$ enhancement, and the $\Lambda(1520)$ suppression explicitly.

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