English

Resonances Do Not Equilibrate

Nuclear Theory 2009-04-24 v1

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+231+2\leftrightarrow 3 resonance formation reactions. Due to the strength of these reactions, we show the Σ(1385)\Sigma(1385) enhancement, and the Λ(1520)\Lambda(1520) suppression explicitly.

Cite

@article{arxiv.0902.2550,
  title  = {Resonances Do Not Equilibrate},
  author = {I. Kuznetsova and J. Letessier and J. Rafelski},
  journal= {arXiv preprint arXiv:0902.2550},
  year   = {2009}
}

Comments

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

R2 v1 2026-06-21T12:11:45.307Z