A unified approach to hadron-hadron, hadron-nucleus and nucleus-nucleus collisions at high energy
The problem of multiparticle production in high-energy hadron-hadron, hadron-nucleus and nucleus-nucleus collisions are studied systematically in the framework of the Geometrical Branching (GBM). The model is based on the geometrical properties of nucleons and the stochastic nature of the interaction among the soft partons. The eikonal formalism is used to relate the elastic and inelastic cross sections and AGK cutting rule is used in connection with the multiparticle production process. The stochastic process of Furry branching is employed to describe the proliferation and hadronization of partons which lead to the produced particles. The approach describes hh, hA and AA collisions in a unified formalism for c.m. energies less than 100 GeV. The result of multiplicity distribution of produced particles exhibits Koba-Nielsen-Olesen (KNO) scaling. The universality of KNO scaling breaks down due to the different geometrical sizes of the hadron and nuclei. For hA and AA collisions, the formalism of GBM allows the hadron to be broken (to h{prime}) by the first collision; indeed, it in the attention given to h{prime}h and h{prime}h{prime} collisions that distinguishes this work from other earlier investigations on the subject. All of the calculated results are in good agreement with experiments. A general Monte Carlo simulation of GBM for multiparticle production in hh, hA and AA collisions is also given. The particle productivity in particular is studied in detail and is contrasted from the case where quark-gluon plasma (QGP) is produced in the AA collisions. This work forms a definitive description of hadronic and nuclear collisions that can serve as a basis from which exotic features such as the formation of QGP can be recognized as signatures deviating from the normal background.
- Research Organization:
- Oregon Univ., Eugene, OR (United States)
- OSTI ID:
- 5178586
- Resource Relation:
- Other Information: Thesis (Ph. D.)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
HADRON-HADRON INTERACTIONS
MULTIPLE PRODUCTION
NUCLEAR REACTIONS
COMPARATIVE EVALUATIONS
EIKONAL APPROXIMATION
ELASTIC SCATTERING
GEV RANGE 10-100
HADRON REACTIONS
INELASTIC SCATTERING
MATHEMATICAL MODELS
MONTE CARLO METHOD
NUCLEONS
PARTONS
QUARK MATTER
STOCHASTIC PROCESSES
BARYONS
ELEMENTARY PARTICLES
ENERGY RANGE
EVALUATION
FERMIONS
GEV RANGE
HADRONS
INTERACTIONS
MATTER
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
POSTULATED PARTICLES
SCATTERING
645204* - High Energy Physics- Particle Interactions & Properties-Theoretical- Strong Interactions & Properties
653003 - Nuclear Theory- Nuclear Reactions & Scattering