Non-equilibrium Hadrochemistry in QGP Hadronization
Abstract
This survey offers an introductory tutorial for students of any age of the currently thriving field of hadrochemistry. We discuss the different chemical potentials, how the hadronic phase space is described and how one evaluates the abundance of hadrons at time of hadronization. We show that a rather accurate description of experimental data arises and we present results of fits to hadron yields at SPS and RHIC. We show that introduction of chemical non-equilibrium originating in a sudden hadronization of a QGP is favored strongly at SPS and is presently also emerging at RHIC. The low chemical freeze-out temperatures are consistent with the picture of single freeze-out scenario (chemical and thermal freeze-out coincide).
Keywords
Cite
@article{arxiv.hep-ph/0206145,
title = {Non-equilibrium Hadrochemistry in QGP Hadronization},
author = {Johann Rafelski and Jean Letessier},
journal= {arXiv preprint arXiv:hep-ph/0206145},
year = {2009}
}
Comments
To appear in the proceedings of Pan American Advanced Studies Institute on New States of Matter in Hadronic Interactions (PASI 2002), Campos do Jordao, Brazil, 7-18 Jan 2002; American Institute of Physics 2002 *v2 Contains UPDATED RHIC-130 chemical freeze-out analysis*