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paper

Resonances Do Not Equilibrate

arXiv:0902.2550

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 $Σ(1385)$ enhancement, and the $Λ(1520)$ suppression explicitly.

12 pages, in Fourth Workshop on Particle Correlations and Femtoscopy (WPCF2008), Krakow, September 11-14, 2008