Published December 17, 1990 | Version v1
Journal article Metadata-only

Strangeness production in ultra-relativistic heavy-ion collisions: Flavour kinetics. Pt. 2

Creators

  • 1. Gesellschaft fuer Schwerionenforschung mbH, Darmstadt (Germany, F.R.)
  • 2. Zentralinstitut fuer Kernforschung, Rossendorf (Germany, F.R.)
  • 3. Technische Hochschule Darmstadt (Germany, F.R.). Inst. fuer Kernphysik

Description

A recently presented model for the non-equilibrium expansion and hadronization of and the strangeness production in a quark-gluon plasma is developed further. The model includes all members of the lowest flavour SU(3) multiplets, the effect of particle evaporation from the surface of the system and a hydrodynamic treatment of the volume expansion. The evaporation and the decay of resonances are found to be equally important for the production of pions and kaons, and to give about 60% of the total yield. If a quark-gluon plasma is formed, the relative strangeness yield is strongly enhanced compared to pp collisions. The predictions of the model are also compared to recent data for nucleus-nucleus collisions. (orig.)

Additional details

Publishing Information

Journal Title
Nuclear Physics, A
Journal Volume
519
Journal Issue
4
Series
Nucl. Phys., A.
Journal Page Range
831-846
ISSN
0375-9474
CODEN
NUPAB

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
22030631
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Descriptors DEI
ANTILAMBDA PARTICLES; BARYON DECUPLETS; BARYON OCTETS; BRANCHING RATIO; COLOR MODEL; DEEP INELASTIC HEAVY ION REACT; DELTA-1232 BARYONS; ENERGY DEPENDENCE; EVAPORATION MODEL; EXPANSION; FLAVOR MODEL; GLUON MODEL; HADRONIC PARTICLE DECAY; HEAVY ION REACTIONS; HYDRODYNAMIC MODEL; HYDRODYNAMICS; IRREDUCIBLE REPRESENTATIONS; IRREVERSIBLE PROCESSES; KAONS; KINETIC EQUATIONS; MESON NONETS; MESON OCTETS; MULTIPLE PRODUCTION; NUCLEAR MATTER; NUCLEAR REACTION KINETICS; NUCLEONS; PIONS; QUARK MATTER; RELATIVISTIC PLASMA; RELATIVISTIC RANGE; SIGMA NEUTRAL PARTICLES; SU-3 GROUPS; TIME DEPENDENCE; VECTOR MESONS
Descriptors DEC
ANTIBARYONS; ANTIHYPERONS; ANTIMATTER; ANTIPARTICLES; BARYONS; BOSONS; COMPOSITE MODELS; DECAY; DELTA BARYONS; ELEMENTARY PARTICLES; ENERGY RANGE; EQUATIONS; FERMIONS; FLUID MECHANICS; HADRONS; HYPERONS; KINETICS; LAMBDA BARYONS; LAMBDA PARTICLES; LIE GROUPS; MATHEMATICAL MODELS; MATTER; MECHANICS; MESONS; MULTIPLETS; N*BARYONS; NUCLEAR MODELS; NUCLEAR REACTIONS; PARTICLE DECAY; PARTICLE MODELS; PARTICLE MULTIPLETS; PARTICLE PRODUCTION; PLASMA; PSEUDOSCALAR MESONS; QUARK MODEL; REACTION KINETICS; SIGMA BARYONS; SIGMA PARTICLES; STATISTICAL MODELS; STRANGE MESONS; STRANGE PARTICLES; SU GROUPS; SYMMETRY GROUPS; THERMODYNAMIC MODEL

Optional Information

Notes
Also published as report GSI--90-39(prepr.).