Energy and Angular Distributions of Electrons Emitted in Capture of Antiprotons by Helium and Neon

Journal Article · Wed Oct 19 04:00:00 EDT 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2121973· OSTI ID:20726643

Cohen, James S ^[1]

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1. Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

Using results of a previous theoretical treatment of antiproton capture by helium and neon atoms, the energies and angular distributions of the electrons emitted in the capture process are analyzed for various incident antiproton energies. The emitted electron energies are considerably higher for the neon target than for the helium target. The electron energies increase with increasing incident antiproton energies, but this dependence is fairly weak. The angular distributions of the emitted electrons are approximately isotropic. They are similar for helium and neon and depend only weakly on the antiproton energy. The angular distributions of uncaptured antiprotons at similar and somewhat higher collision energies are also presented.

• OSTI ID: 20726643
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 793; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR DISTRIBUTION
ANTIPROTONS
ATOMS
CAPTURE
ELECTRON COLLISIONS
ELECTRON EMISSION
ELECTRONS
HELIUM
IONIZATION
NEON