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

Abstract

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.

References updated Poster in QM2006 conference, Shanghai

References in corpus (2)

• Status of Chemical Freeze-Out
• SHAREv2: fluctuations and a comprehensive treatment of decay feed-down

Cited by in corpus (4)

• K/pi Fluctuations at Relativistic Energies
• Hadronic Fluctuations and Correlations
• Fluctuations of the $K/\pi$ Ratio in Nucleus-Nucleus Collisions: Statistical and Transport Models
• Multiplicity Fluctuations in Limited Segments of Momentum Space in Statistical Models