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Title: Particle production in high-energy nuclear collisions: Parton cascade--cluster hadronization model

Abstract

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 [similarmore » to]2.5 per nucleon larger than in [ital p]+[ital p] collisions at corresponding energies.« less

Authors:
 [1]
  1. School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455 (United States)
Publication Date:
OSTI Identifier:
6818862
DOE Contract Number:  
FG02-87ER40328
Resource Type:
Journal Article
Journal Name:
Physical Review, D (Particles Fields); (United States)
Additional Journal Information:
Journal Volume: 47:1; Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 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-)

Citation Formats

Geiger, K. Particle production in high-energy nuclear collisions: Parton cascade--cluster hadronization model. United States: N. p., 1993. Web. doi:10.1103/PhysRevD.47.133.
Geiger, K. Particle production in high-energy nuclear collisions: Parton cascade--cluster hadronization model. United States. doi:10.1103/PhysRevD.47.133.
Geiger, K. Fri . "Particle production in high-energy nuclear collisions: Parton cascade--cluster hadronization model". United States. doi:10.1103/PhysRevD.47.133.
@article{osti_6818862,
title = {Particle production in high-energy nuclear collisions: Parton cascade--cluster hadronization model},
author = {Geiger, K},
abstractNote = {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.},
doi = {10.1103/PhysRevD.47.133},
journal = {Physical Review, D (Particles Fields); (United States)},
issn = {0556-2821},
number = ,
volume = 47:1,
place = {United States},
year = {1993},
month = {1}
}