language: en

[Confidential: not for distribution. Submitted to IOP Publishing for peer review]

19 March 2010

Statistical hadronization phenomenology in K/π fluctuations at ultra-relativistic energies

Giorgio Torrieri a ,Rene Bellwied b ,Christina Markert c ,Gary Westfall a,d
a FIAS, J.W. Goethe Universität,
Frankfurt A.M., Germany.
b Wayne State University,
Detroit, Michigan 48201, USA
c Texas A&M University,
College Station, Texas 77843, USA
d Michigan State University,
East Lansing, Michigan 48824, USA

[Statistical hadronization phenomenology in K/π fluctuations at ultra-relativistic energies2]

Abstract. We discuss the information that can be obtained from an analysis of fluctuations in heavy ion collisions within the context of the statistical model of particle production. We then examine the recently published experimental data on ratio fluctuations, and use it to obtain constraints on the statistical properties (physically relevant ensemble, degree of chemical equilibration, scaling across energies and system sizes) and freeze-out dynamics (amount of reinteraction between chemical and thermal freeze-out) of the system.