Freeze-Out Parameters in Central 158AGeV Pb+Pb Collisions

Preprint

9 July 1999

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.nucl-ex/9901009

Abstract

Neutral pion production in central 158AGeV Pb+Pb collisions has been studied in the WA98 experiment at the CERN SPS. The pi0 transverse mass spectrum has been analyzed in terms of a thermal model with hydrodynamic expansion. The high accuracy and large kinematic coverage of the measurement allow to limit previously noted ambiguities in the extracted freeze-out parameters. The results are shown to be sensitive to the shape of the velocity distribution at freeze-out.

Keywords

FREEZE OUT PARAMETERS
CENTRAL 158AGEV PB
COLLISIONS NEUTRAL
THERMAL MODEL
PB COLLISIONS
EXTRACTED

All Related Versions

Version 1, 1999-01-29, ArXiv
Version 2, 1999-07-09, ArXiv
Published version: Physical Review Letters, 83 (5), 926.

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