Multiple Production of Particles in High-Energy Interactions (thesis); PRODUCTION MULTIPLE DE PARTICULES DANS LES INTERACTIONS A HAUTE ENERGIE (thesis)
Technical Report
·
OSTI ID:4132471
The statistical theory of multiple production of particles is studied. One of the difficulties in the utilization of the statistical theory is the evolution of the phase space element'' that is connected to the density of the kinematic state. The classical methods (approximations on the kinematic conditions on the particle or on the integrations themselves) and the Monte Carlo method for the calculation of this factor are reviewed. The Gaussian approximation'' method (a simplification of the Monte Carlo method), which consists of the replacement of a complicated analytical probability expression with a Gaussian function, is studied The practical realization of the calculation and the problems posed by the utilization of the Monte Carlo method and of a computer are discussed. The validity of the approximation method is verified. The multiple production of particles in pi /sup -/-p collisions at 5 Bev was calculated. The results show that 80% of the interactions lead to final states containing only nucleons and pi mesons. Strange particles ( DELTA , K, SIGMA , and XI ) occur in 12% of the interactions. Antinucleons are produced 6% of the time and K-K pairs, 2%. The mean number of pi mesons created is approximately 2.3 and the maximum number is 6. These results are in good agreement with experimental results except for antiproton production. (J.S.R.)
- Research Organization:
- Lyon. Universite
- NSA Number:
- NSA-18-005993
- OSTI ID:
- 4132471
- Report Number(s):
- NP-13355
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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