Published December 13, 1990 | Version v1
Journal article Metadata-only

The influence of resonance decyas on the pT spectra from heavy-ion collisions

Creators

  • 1. Regensburg Univ. (Germany, F.R.). Inst. fuer Physik 1 - Theoretische Physik

Description

The influence of resonance decays on hadronic momentum spectra is studied quantitatively within a simple thermodynamical model. We derive expressions for the rapidity and transverse momentum spectra of particles originating from two- and three-body decay of resonances with specified momentum distribution. We compare the results for a thermally and chemically equilibrated hadron gas without transverse expansion with data from the NA35 Collaboration for pion, kaon, proton and Λ pT spectra from 200 A GeV S+S collisions and find excellent agreement for T = 200 MeV and μb = 100-200 MeV. (orig.)

Additional details

Publishing Information

Journal Title
Physics Letters, (Section) B
Journal Volume
252
Journal Issue
2
Series
Phys. Lett., B.
Journal Page Range
256-264
ISSN
0370-2693
CODEN
PYLBA

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
22033298
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
ANTILAMBDA PARTICLES; ANTINEUTRONS; ANTIPROTONS; ANTISIGMA PARTICLES; BOLTZMANN STATISTICS; DEEP INELASTIC HEAVY ION REACT; DELTA-1232 BARYONS; EFFECTIVE MASS; ETA MESONS; HADRONIC PARTICLE DECAY; K*-892 MESONS; KAONS; MASS SPECTRA; MULTIPLICITY; NUCLEAR REACTION KINETICS; NUCLEAR TEMPERATURE; OMEGA-783 MESONS; PAIR PRODUCTION; PARTICLE RAPIDITY; PARTITION FUNCTIONS; PIONIZATION; PIONS; RELATIVISTIC RANGE; RHO-770 MESONS; SIGMA-1385 BARYONS; SULFUR 32 REACTIONS; SULFUR 32 TARGET; TEV RANGE 01-10; THEORETICAL DATA; THERMAL EQUILIBRIUM; THERMODYNAMIC MODEL; THREE-BODY PROBLEM; TRANSVERSE MOMENTUM; TWO-BODY PROBLEM
Descriptors DEC
ANTIBARYONS; ANTIHYPERONS; ANTIMATTER; ANTINUCLEI; ANTINUCLEONS; ANTIPARTICLES; BARYONS; BOSONS; CATIONS; CHARGED PARTICLES; DATA; DECAY; DELTA BARYONS; ELEMENTARY PARTICLES; ENERGY RANGE; EQUILIBRIUM; FERMIONS; FUNCTIONS; HADRONS; HEAVY ION REACTIONS; HYDROGEN IONS; HYDROGEN IONS 1 PLUS; HYPERONS; INFORMATION; IONS; KINETICS; LAMBDA BARYONS; LAMBDA PARTICLES; LINEAR MOMENTUM; MANY-BODY PROBLEM; MASS; MATHEMATICAL MODELS; MATTER; MESONS; MULTIPLE PRODUCTION; N*BARYONS; NEUTRONS; NUCLEAR REACTIONS; NUCLEI; NUCLEONS; NUMERICAL DATA; PARTICLE DECAY; PARTICLE MODELS; PARTICLE PRODUCTION; PARTICLE PROPERTIES; PROTONS; PSEUDOSCALAR MESONS; REACTION KINETICS; SIGMA BARYONS; SIGMA PARTICLES; SPECTRA; STATISTICAL MODELS; STRANGE MESONS; STRANGE PARTICLES; TARGETS; TEV RANGE; VECTOR MESONS

Optional Information

Contract/Grant/Project number
Grant BMFT 06OR764; DFG He 1283/3-1