Multiparticle production by 200-GeV/c hadrons on gold, silver, and magnesium targets

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

DOI:https://doi.org/10.1103/PhysRevD.39.2484· OSTI ID:6270598

Brick, D H; Widgoff, M; Beilliere, P; Lutz, P; Narjoux, J L; Gelfand, N; Alyea, Jr, E D; Bloomer, M; Bober, J; Busza, W; others, and

We have used the Fermilab 30-in. bubble-chamber hybrid spectrometer to study multiparticle production in the interactions of 200-GeV/c protons and ..pi../sup +/ and K/sup +/ mesons with nuclei of gold, silver, and magnesium. We find that the multiplicities of produced particles and negative particles increase linearly with the number of projectile collisions, with no beam or target dependence. The number of secondary collisions in the nucleus increases significantly less rapidly with the number of projectile collisions than has been reported by a streamer chamber experiment. The properties of secondary collisions suggest that they arise from rescattering of recoil nucleons rather than intranuclear cascade of produced particles. Dispersions of multiplicity distributions at fixed impact parameter are in better agreement with a model of independent sources than with Koba-Nielsen-Olesen scaling.

• Research Organization: Brown University, Providence, Rhode Island 02912
• OSTI ID: 6270598
• 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

645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ALKALINE EARTH METALS
BARYON REACTIONS
BOSONS
CHARGED-PARTICLE REACTIONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
GEV RANGE
GEV RANGE 100-1000
GOLD
HADRON REACTIONS
HADRONS
IMPACT PARAMETER
KAON REACTIONS
KAONS
KAONS PLUS
MAGNESIUM
MESON REACTIONS
MESONS
METALS
MULTIPLE PRODUCTION
MULTIPLICITY
NUCLEAR REACTIONS
NUCLEON REACTIONS
PARTICLE PRODUCTION
PROTON REACTIONS
PSEUDOSCALAR MESONS
RECOILS
RHO-770 MESONS
SILVER
STRANGE MESONS
STRANGE PARTICLES
TRANSITION ELEMENTS
VECTOR MESONS