Hard photons in proton-nucleus collisions

Journal Article · Fri Dec 01 04:00:00 EST 1989 · Physical Review (Section) C: Nuclear Physics; (USA)

DOI:https://doi.org/10.1103/PhysRevC.40.2520· OSTI ID:7265313

Nakayama, K ^[1]; Bertsch, G F ^[2]

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1. Institut fuer Kernphysik, Kernforschungsanlage Juelich, D-5170, Juelich, West Germany (Germany, F.R.)
2. Department of Physics and Astronomy Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (USA)

A calculation of energetic photon production in proton-nucleus reactions at intermediate bombarding energies is performed assuming the first chance nucleon-nucleon collisional mechanism. The elementary nucleon-nucleon bremsstrahlung amplitude is calculated within a meson exchange potential model which includes the one-body as well as the two-body current contributions. The results are in reasonable agreement with the recent data by the Grenoble group at the proton incident energy of {ital T}{sub lab}=168 MeV and indicate that these energetic photons are created in a relatively low-density region in the nucleus ({similar to}40% of the nuclear matter normal density). The present model, however, cannot account for the strong angular dependence observed at {ital T}{sub lab}=72 MeV.

• OSTI ID: 7265313
• Journal Information: Physical Review (Section) C: Nuclear Physics; (USA), Journal Name: Physical Review (Section) C: Nuclear Physics; (USA) Vol. 40:6; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

645204 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions & Properties
653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
BARYON-BARYON INTERACTIONS
BREMSSTRAHLUNG
CHARGED-PARTICLE REACTIONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY RANGE
G MATRIX
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
INTERACTIONS
MASSLESS PARTICLES
MATRICES
MEV RANGE
MEV RANGE 10-100
MEV RANGE 100-1000
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEON-NUCLEON INTERACTIONS
OPE POTENTIAL
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PHOTONS
POTENTIALS
PROTON REACTIONS
RADIATIONS