THERMAL AND HADROCHEMICAL EQUILIBRATION IN NUCLEUS-NUCLEUS COLLISIONSAT THE SPS

Authors
BRAUNMUNZINGER P STACHEL J WESSELS JP XU N
Citation
P. Braunmunzinger et al., THERMAL AND HADROCHEMICAL EQUILIBRATION IN NUCLEUS-NUCLEUS COLLISIONSAT THE SPS, Physics letters. Section B, 365(1-4), 1996, pp. 1-6
Citations number
44
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
365
Issue
1-4
Year of publication
1996
Pages
1 - 6
Database
ISI
SICI code
0370-2693(1996)365:1-4<1:TAHEIN>2.0.ZU;2-M
Abstract
The currently available set of hadron abundances at the SPS for centra l S + Au(W,Pb) collisions is compared to predictions from a scenario a ssuming local thermal and hadrochemical equilibrium. The data are cons istent with a freeze-out temperature T = 160-170 MeV. Spectra are cons istent with this temperature range and a moderate transverse expansion . The freeze-out points at the AGS and SPS are found to be close to th e phase boundary between a hadron gas and an ideal quark-gluon phase.