Published July 29, 2002 | Version v1
Journal article Metadata-only

Freeze-out problem in hydrokinetic approach to A+A collisions

Creators

  • 1. IF-University of Sa(tilde sign)o Paulo, C.P. 66318, 05389-970 Sao Paulo, SP (Brazil)
  • 2. Bogolyubov Institute for Theoretical Physics, Kiev 03143, Metrologichna 14b (Ukraine)
  • 3. IF-University of Sao Paulo, C.P. 66318, 05389-970 Sao Paulo, SP (Brazil)

Description

A new method for evaluating spectra and correlations in the hydrodynamic approach is proposed. It is based on an analysis of the Boltzmann equations (BE) in terms of probabilities for constituent particles to escape from the interacting system. The conditions of applicability of the Cooper-Frye freeze-out prescription are considered within the method. The results are illustrated with a nonrelativistic exact solution of BE for an expanding spherical fireball as well as with approximate solutions for ellipsoidally expanding ones

Additional details

Identifiers

DOI
10.1103/PhysRevLett.89.052301;
arXiv
arXiv:nucl-th/0201015v5;

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
89
Journal Issue
5
Journal Page Range
p. 052301-052301.4
ISSN
0031-9007
CODEN
PRLTAO

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
35030423
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Descriptors DEI
BOLTZMANN EQUATION; EXACT SOLUTIONS; FREEZING OUT; HEAVY ION REACTIONS; HYDRODYNAMIC MODEL; NUCLEAR MATTER; QUARK MATTER; RELATIVISTIC RANGE
Descriptors DEC
DIFFERENTIAL EQUATIONS; ENERGY RANGE; EQUATIONS; INTEGRO-DIFFERENTIAL EQUATIONS; KINETIC EQUATIONS; MATHEMATICAL MODELS; MATHEMATICAL SOLUTIONS; MATTER; NUCLEAR REACTIONS; PARTIAL DIFFERENTIAL EQUATIONS; PARTICLE MODELS; SEPARATION PROCESSES; STATISTICAL MODELS; THERMODYNAMIC MODEL

Optional Information

Notes
(c) 2002 The American Physical Society