Monte Carlo calculation of high-energy heavy-ion interactions

Journal Article · Sat Nov 01 04:00:00 EST 1980 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.22.1885· OSTI ID:6895647

Cugnon, J

A relativistic Monte Carlo model for high-energy heavy-ion collisions is presented. The interaction process is described as a sequence of classical, binary, on-shell baryon-baryon collisions. Pion production is taken into account by allowing ..delta.. resonance formation. The latter are given a definite mass and a lifetime larger than the collision time. They are, however, allowed to scatter or disappear by collisions with the nucleons. The results of the calculations are compared with experimental results for the inclusive proton and pion cross sections and two-proton correlations in the /sup 12/C+/sup 12/C, /sup 20/Ne+NaF, and /sup 40/Ar+KCl systems at 800 MeV per nucleon. The predictions of the model agree fairly well with the experimental measurements, except for the low-energy pion cross section, which is underestimated. The relation of this feature to the zero-width mass spectrum of the ..delta.. resonances is briefly discussed. The model is used to separate the direct knockout and the thermal contributions to the proton inclusive cross section. Attention is drawn to the fact that these two contributions are not unambiguously defined.

• Research Organization: W. K. Kellogg Radiation Laboratory, California Institute of Technology, Pasadena, California 91125
• OSTI ID: 6895647
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 22:5; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALI METAL COMPOUNDS
ARGON 40 REACTIONS
ARGON 40 TARGET
BARYON RESONANCES
BARYON-BARYON INTERACTIONS
BARYONS
BINDING ENERGY
BOSONS
CARBON 12 REACTIONS
CARBON 12 TARGET
CHARGED-PARTICLE REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
CROSS SECTIONS
ELEMENTARY PARTICLES
ENERGY
ENERGY RANGE
FERMIONS
FLUORIDES
FLUORINE COMPOUNDS
HADRON-HADRON INTERACTIONS
HADRONS
HALIDES
HALOGEN COMPOUNDS
HEAVY ION REACTIONS
INCLUSIVE INTERACTIONS
INTERACTIONS
LIFETIME
MASS SPECTRA
MATHEMATICAL MODELS
MESONS
MONTE CARLO METHOD
N RESONANCES
NEON 20 REACTIONS
NEON 20 TARGET
NUCLEAR MODELS
NUCLEAR REACTIONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PIONS
POTASSIUM CHLORIDES
POTASSIUM COMPOUNDS
PSEUDOSCALAR MESONS
RELATIVISTIC RANGE
RESONANCE PARTICLES
SHELL MODELS
SODIUM COMPOUNDS
SODIUM FLUORIDES
SPECTRA
TARGETS