Resonance Production in Heavy Ion Collisions: Suppression of $Λ(1520)$ and Enhancement of $Σ(1385)$

Details Resonance Production in Heavy Ion Collisions: Suppression of $Λ(1520)$ and Enhancement of $Σ(1385)$ Resonance Production in Heavy Ion Collisions: Suppression of $Λ(1520)$ and Enhancement of $Σ(1385)$

2008-11-10

arxiv.org/abs/0811.1409v3

Phys.Rev.C79:014903,2009

Physics

Nuclear Physics

Nuclear Theory

13 pages, 9 figures, accepted to Physical Review C, right figure 9 was replaced because lines style was mixed up

Scientific paper

10.1103/PhysRevC.79.014903

We investigate the yield of $\Lambda(1520)$ resonance in heavy ion collisions within the framework of a kinetic master equation without the assumption of chemical equilibrium. We show that reactions such as $\Lambda(1520)+\pi \leftrightarrow \Sigma^*$ can favor $\Sigma^*$ production, thereby decreasing the $\Lambda(1520)$ yield. Within the same approach we thus find a yield enhancement for $\Sigma(1385)$ and a yield suppression for $\Lambda(1520)$.

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