Mechanism for 180° Proton Production in Energetic Proton-Nucleus Collisions

Abstract

The energetic protons seen at 180\ifmmode^\circ\else\textdegree\fi{} in 600- and 800-MeV proton-nucleus collisions by Frankel et al. are accounted for by a single-scattering mechanism that incorporates a new phenomenological form for the momentum distribution in the nucleus.