Multiplicity distributions in high-energy hadron-nucleus collisions. I. Formalism

Journal Article · Mon May 01 04:00:00 EDT 1989 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.39.2561· OSTI ID:6320042

Hwa, R C; Wang, X

The problem of multiparticle production in hadron-nucleus collisions is formulated in a way consistent with the Gribov-Glauber theory for inelastic cross section on the one hand, while being the generalization of a particle production model for pp collisions on the other hand. The latter is the geometrical branching model that satisfactorily describes geometrical scaling and Koba-Nielsen-Olesen scaling. The formalism allows the incident hadron to be broken by the first collision. Dependences on the impact parameter b and the multiplicity of gray particles N/sub g/ are carefully taken into account. The average multiplicity as a function of the number of inelastic collisions, whether holding b,N/sub g/ fixed, or integrated, is derived, and is shown to agree with the data with a universal slope parameter ..beta... General formulas for the multiplicity distributions are obtained for produced particles as well as for shower particles. A universal property of particle production in hN and hA collisions based on effective interactions among many partons is discussed. The geometrical branching model is then further developed to make possible the determination of ..beta.. to be 0.5.

• Research Organization: Institute of Theoretical Science and Department of Physics, University of Oregon, Eugene, Oregon 97403
• OSTI ID: 6320042
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 39:9; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645204* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON-BARYON INTERACTIONS
CROSS SECTIONS
ELEMENTARY PARTICLES
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
IMPACT PARAMETER
INCLUSIVE INTERACTIONS
INELASTIC SCATTERING
INTERACTIONS
MATTER
MOMENTUM TRANSFER
MULTIPLE PRODUCTION
MULTIPLICITY
NUCLEAR POTENTIAL
NUCLEAR REACTIONS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PARTONS
POSTULATED PARTICLES
POTENTIALS
PROTON-NUCLEON INTERACTIONS
PROTON-PROTON INTERACTIONS
QUARK MATTER
SCATTERING
WOODS-SAXON POTENTIAL