Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2000-09-04
Physics
High Energy Physics
High Energy Physics - Phenomenology
4 pages, 4 figures, ref. to recent works added
Scientific paper
In the frame of 2+1 Bjorken hydrodynamics we describe simultaneously hadron yields and midrapidity pt distributions of direct photons, unflavored, and strange hadrons measured in Pb+Pb collisions at SpS. We find, that a reasonably quantitative description of these data is possible only if we introduce some radial velocity at the beginning of the one-fluid hydrodynamic stage. We fix uniquely all parameters of this model, and estimate an initial temperature of the just thermalized state T_{in}=(200 +40 -20) MeV in the case of EoS with phase transition to Quark-Gluon Plasma, and T_{in}=(230 +60 -30) MeV in the pure hadronic scenario. We conclude that SpS data considered in our study can not distinguish between a production of QGP, and its absence.
Peressounko Yu. D.
Pokrovsky Yu. E.
No associations
LandOfFree
Thermalization temperature in Pb+Pb collisions at SpS energy from hadron yields and midrapidity pt distributions of hadrons and direct photons 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 Thermalization temperature in Pb+Pb collisions at SpS energy from hadron yields and midrapidity pt distributions of hadrons and direct photons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermalization temperature in Pb+Pb collisions at SpS energy from hadron yields and midrapidity pt distributions of hadrons and direct photons will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-486946