Multiplicity distributions in high-energy hadron-nucleus collisions. II. Phenomenology

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

DOI:https://doi.org/10.1103/PhysRevD.39.2573· OSTI ID:6067068

Wang, X; Hwa, R C

The calculated results of our formalism for multiplicity distribution in hadron-nucleus collisions are demonstrated and compared with experimental data. The leading particles are found to be responsible for the energy dependence of multiplicity distributions both in hN and hA cases. For shower particles in hA, the Koba-Nielsen-Olesen (KNO) scaling is approximately valid only when the nucleus is heavy but its universality breaks down. The peak of the KNO distribution shifts to smaller values of n/sub s///sub hA/ when A increases. We also calculate fluctuations of various types. The advantages of measuring the gray-particle multiplicity N/sub g/ are discussed. Because of the fluctuation in the number of collisions, there should be no universal behavior for the multiplicity distribution at various impact parameters. Without any free parameter, all the results agree extremely well with experiments.

• Research Organization: Institute of Theoretical Science and Department of Physics, University of Oregon, Eugene, Oregon 97403
• OSTI ID: 6067068
• 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
ENERGY DEPENDENCE
HADRON REACTIONS
IMPACT PARAMETER
INELASTIC SCATTERING
MULTIPLE PRODUCTION
MULTIPLICITY
NUCLEAR REACTIONS
PARTICLE PRODUCTION
SCATTERING