Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1998-10-12
J.Phys.G25:295-309,1999
Physics
High Energy Physics
High Energy Physics - Phenomenology
Presented at the International Conference Strangeness in Quark Matter held in Padova, July 1998 To appear in: Journal of Physi
Scientific paper
10.1088/0954-3899/25/2/018
Strange particles produced in S-Au/W/Pb 200 A GeV and Pb-Pb 158 A GeV reactions are described invoking final hadronic phase space in thermal equilibrium, but allowing chemical non-equilibrium. Several sets of statistical freeze-out parameters are obtained for each system, invoking different models of dense matter. We show that only when allowing for strange and non-strange flavor abundance non-equilibrium, a statistically significant description of the experimental results is obtained. Physical properties of the fireball at chemical freeze-out condition are evaluated and considerable universality of hadron freeze-out between the two different collision systems is established. The relevance of the Coulomb effect in the highly charged Pb-Pb fireballs for the chemical analysis are discussed. The influence of explosive collective matter flow is also described.
Letessier Jean
Rafelski Johann
No associations
LandOfFree
Chemical Nonequilibrium in High Energy Nuclear Collisions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Chemical Nonequilibrium in High Energy Nuclear Collisions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chemical Nonequilibrium in High Energy Nuclear Collisions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-619467