Thermal and hadrochemical equilibration in nucleus-nucleus collisions at the SPS
Abstract
The currently available set of hadron abundances at the SPS for central S + Au(W,Pb) collisions is compared to predictions from a scenario assuming local thermal and hadrochemical equilibrium. The data are consistent with a freeze-out temperature T = 160-170 MeV. Spectra are consistent with this temperature range and a moderate transverse expansion. The freeze-out points at the AGS and SPS are found to be close to the phase boundary between a hadron gas and an ideal quark-gluon phase.
- Publication:
-
Physics Letters B
- Pub Date:
- February 1996
- DOI:
- 10.1016/0370-2693(95)01258-3
- arXiv:
- arXiv:nucl-th/9508020
- Bibcode:
- 1996PhLB..365....1B
- Keywords:
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- Nuclear Theory
- E-Print:
- 14 pages + 3 figures. Paper replaced with version accepted for publication in Phys. Lett. B