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

摘要

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.