Diagnosis of QGP with Strange Hadrons

Details Diagnosis of QGP with Strange Hadrons Diagnosis of QGP with Strange Hadrons

1999-10-11

arxiv.org/abs/hep-ph/9910300v1

ActaPhys.Polon.B30:3559-3583,1999

Physics

High Energy Physics

High Energy Physics - Phenomenology

24 pages, including 5 figures; Presented at the 29th Krakow School of Theoretical Physics, Zakopane, June 1999, submitted to A

Scientific paper

We review the current status of strangeness as signature of the formation and dissociation of the deconfined QGP at the SPS energy scale, and present the status of our considerations for RHIC energies. By analyzing, within the framework of a Fermi statistical model, the hadron abundance and spectra, the properties of a disintegrating, hadron evaporating, deconfined QGP fireball are determined and can be compared with theory for the energy range 160--200AGeV on fixed target. We discuss in more detail our finding that the pion yields occur near to pion condensation condition. Dynamical models of chemical strangeness equilibration are developed and applied to obtain strangeness production in a QGP phase at conditions found at SPS and expected at RHIC. The sudden QGP break up model that works for the SPS data implies at RHIC dominance of both baryon, and antibaryon, abundances by the strange baryon and antibaryon yields.

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