Parameter-free determination of actual temperature at chemical freeze-out in nuclear interactions
- University of Athens, Physics Department, Nuclear & Particle Physics Division, Panepistimiopolis, GR-157 71 Athens, Hellas (Greece)
We propose a method to determine the actual temperature at chemical freeze-out in relativistic nucleus-nucleus collisions, using the experimental {mu}{sub q}/T and {mu}{sub s}/T values, obtained from strange particle ratios. We employ the Hadron Gas formalism, assuming only local thermal equilibration, to relate the quarkchemical potential and temperature. This relation constrains the allowed values of {mu}{sub q}/T, {mu}{sub s}/T and T, enabling the determination of the actual temperature. Comparison of the inverse slope parameter of the m{sub T}-distributions with the actual temperature determines the transverse flow velocity of the fireball matter. Knowledge of these quantities is essential in determining the EoS of nuclear matter and in evaluating interactions with regard to a possible phase transition to QGP. {copyright} 1995 {ital American} {ital Institute} {ital of} {ital Physics}.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 165705
- Report Number(s):
- CONF-950172--
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 340; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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