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Production of. gamma. rays and neutral strange particles in dTa and CTa interactions at 4. 2 GeV/c per nucleon

Journal Article · · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)
OSTI ID:5510995

First results are presented on the production of ..gamma.. rays, ..lambda.. hyperons, and K/sup 0//sub S/ mesons in dTa and CTa interactions at momentum 4.2 GeV/c per nucleon. The average multiplicities of these particles are determined. It is shown that the average multiplicities of ..gamma.. rays (..pi../sup 0/ mesons), ..lambda.., and K/sup 0//sub S/ in the transition from dTa to CTa interactions increase in proportion to the average number of interacting nucleons of the projectile nucleus. The following average characteristics of the ..pi../sup 0/ mesons are obtained:

,

0, and , which agree within experimental error with

,

/sup pi-/, and in the corresponding types of interactions. Analysis of CTa interactions with production of ..lambda.. hyperons has shown that about 40% of ..lambda.. hyperons are beyond the limits of the kinematic region for the reaction NN..-->..N..lambda..K, and the average multiplicity of all charged particles and also of negative particles in events with ..lambda.. hyperons is significantly higher than in all CTa interactions. The CTa interactions which lead to production of ..lambda.. hyperons are more central than the average CTa interaction.

OSTI ID:
5510995
Journal Information:
Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 37:5; ISSN SJNCA
Country of Publication:
United States
Language:
English

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Related Subjects

645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
BOSONS
CARBON 12 TARGET
CHARGED-PARTICLE REACTIONS
DEUTERON REACTIONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GAMMA RADIATION
GEV RANGE
GEV RANGE 10-100
HADRONS
HYPERONS
IONIZING RADIATIONS
KAONS
KAONS NEUTRAL
KAONS NEUTRAL SHORT-LIVED
LAMBDA PARTICLES
MESONS
MULTIPLICITY
NUCLEAR REACTIONS
PARTICLE PRODUCTION
PIONS
PIONS NEUTRAL
PSEUDOSCALAR MESONS
RADIATIONS
STRANGE PARTICLES
TANTALUM 181 TARGET
TARGETS