Pion abundance and entropy in the hydrodynamical description of relativistic nuclear collisions

Preprint

6 January 2000

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.nucl-th/0001010

Abstract

We show that a hydrodynamical model with continuous particle emission instead of sudden freeze out can explain both the strange particle abundances and pion abundance from NA35 without extra assumption (e.g., sequential freeze out, modified equation of state, sudden plasma hadronization,...). In this scenario, the observation of a larger pion abundance is natural and does not imply a higher initial entropy and early plasma phase.

Keywords

HYDRODYNAMICAL DESCRIPTION
MODEL WITH CONTINUOUS
RELATIVISTIC NUCLEAR
NUCLEAR COLLISIONS
PION ABUNDANCE
PARTICLE
ENTROPY

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Version 1, 2000-01-06, ArXiv

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