A statistical model analysis of $K/π$ fluctuations in heavy ion collisions

Details A statistical model analysis of $K/π$ fluctuations in heavy ion collisions A statistical model analysis of $K/π$ fluctuations in heavy ion collisions

2007-02-19

arxiv.org/abs/nucl-th/0702062v2

Int.J.Mod.Phys.E16:1783-1789,2007

Physics

Nuclear Physics

Nuclear Theory

References updated Poster in QM2006 conference, Shanghai

Scientific paper

10.1142/S0218301307007003

We briefly describe two statistical hadronization models, based respectively on the presence and absence of light quark chemical equilibrium, used to analyze particle yields in heavy ion collisions. We then try to distinguish between these models using $K/\pi$ fluctuations data. We find that while the non-equilibrium model provides an acceptable description of fluctuations at top SPS and RHIC energies, both models considerably under-estimate fluctuations at low SPS energies.

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