The Interaction of 970 MeV Protons with Helium

Journal Article · Tue Sep 20 04:00:00 EDT 1960 · Proceedings of the Royal Society. A. Mathematical, Physical and Engineering Sciences

DOI:https://doi.org/10.1098/rspa.1960.0154· OSTI ID:4130075

Riddiford, L.; Williams, A. W.

The interaction of 970-Mev protons with helium was studied with a high- pressure diffusion cloud chamber. From 642 events the total and absorption cross sections were found to be 116 plus or minus 17 mb and 93 plus or minus 13 mb, respectively. These agree with values obtained by extrapolation of known cross sections for more complex nuclei, and the results are interpreted in terms of the optical model of the nucleus. The angular distribution for elastic scattering yields an alpha -particle radius of 1.8 x 10^-13 cm. Quasi-elastic proton- proton and proton-neutron scattering, and more particularly charged meson production, show that the alpha particle has some individual particle characteristics. Meson reabsorption appears unimportant.

• Research Organization: Univ. of Birmingham, Eng.
• Sponsoring Organization: USDOE
• NSA Number: NSA-14-026249
• OSTI ID: 4130075
• Journal Information: Proceedings of the Royal Society. A. Mathematical, Physical and Engineering Sciences, Journal Name: Proceedings of the Royal Society. A. Mathematical, Physical and Engineering Sciences Journal Issue: 1290 Vol. 257; ISSN 1364-5021
• Publisher: The Royal Society Publishing
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION
ALPHA PARTICLES
ANGULAR DISTRIBUTION
CLOUD CHAMBERS
CROSS SECTIONS
DIFFUSION CHAMBERS
HELIUM
INTERACTIONS
MESONS
MEV RANGE
NEUTRONS
NUCLEAR MODELS
NUCLEI
OPTICAL MODEL
PARTICLE TRACKS
PRODUCTION
PROTON BEAMS
PROTONS
SCATTERING