Particle production in high-energy nuclear collisions: Parton cascade--cluster hadronization model
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455 (United States)
A phenomenological cluster hadronization scheme for partons in nuclear collisions is presented and combined with the earlier developed parton cascade model to provide a comprehensive description of highly relativistic hadron-hadron and nucleus-nucleus collisions. The model as a whole allows one to study the time evolution of the collisions in complete phase space from the instant of nuclear contact, via the perturbative QCD evolution of parton distributions, to the formation of final hadronic states. The application of this approach to [ital p[bar p]] collisions at [radical][ital s] =200--1800 GeV yields a decent agreement with the experimentally measured momentum and multiplicity distributions. Heavy ion collisions are illustratively studied in the case of central Au+Au collisions at the BNL energies of Relativistic Heavy Ion Collider (RHIC) ([radical][ital s] =200[ital A] GeV) and the CERN Large Hadron Collider (LHC) ([radical][ital s] =6300[ital A] GeV). The impact of a number of nuclear and medium effects on the inclusive hadron production is analyzed and predictions for charged particle spectra and multiplicities are given. In particular, the model results for the central rapidity densities of charged particles are [congruent]1200 ([radical][ital s] =200[ital A] GeV) and [congruent]2500 ([radical][ital s] =6300[ital A] GeV), which is a factor of [similar to]2.5 per nucleon larger than in [ital p]+[ital p] collisions at corresponding energies.
- DOE Contract Number:
- FG02-87ER40328
- OSTI ID:
- 6818862
- Journal Information:
- Physical Review, D (Particles Fields); (United States), Vol. 47:1; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
HADRON-HADRON INTERACTIONS
PARTICLE PRODUCTION
HEAVY ION REACTIONS
CASCADE THEORY
GEV RANGE 100-1000
GOLD
MULTIPLICITY
NUCLEON-NUCLEON INTERACTIONS
PARTICLE RAPIDITY
PARTON MODEL
PERTURBATION THEORY
PHASE SPACE
PROTON-ANTIPROTON INTERACTIONS
QUANTUM CHROMODYNAMICS
RELATIVISTIC RANGE
TEV RANGE 01-10
BARYON-BARYON INTERACTIONS
CHARGED-PARTICLE REACTIONS
COMPOSITE MODELS
ELEMENTS
ENERGY RANGE
FIELD THEORIES
GEV RANGE
INTERACTIONS
MATHEMATICAL MODELS
MATHEMATICAL SPACE
METALS
NUCLEAR REACTIONS
NUCLEON-ANTINUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
QUANTUM FIELD THEORY
SPACE
TEV RANGE
TRANSITION ELEMENTS
662340* - Hadron Interactions- (1992-)
662230 - Quantum Chromodynamics- (1992-)