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Quasi-elastic nucleon-nucleus scattering at high energy

1961; Italian Physical Society; Volume: 22; Issue: 3 Linguagem: Inglês

10.1007/bf02774897

1827-6121

Robert Karplus, Yoshio Yamaguchi,

earthquake and tectonic studies

The angular distribution for elastic nucleon-nucleon scattering at high energy is sharply peaked in the forward direction. As a consequence, there is an angular interval in nucleon-nucleus scattering to which successive small-angle elastic nucleon-bound nucleon scatterings are more likely to contribute than a single nucleon-bound nucleon scattering through the angle of observation. Such « plural » collisions result in outgoing nucleons which have suffered a smaller energy loss than nucleons that are scattered from hydrogen at the same angle. The Fermi motion of the bound nucleons produces a broadening in the energy distribution of the scattered nucleons, but displaces the centre of the distribution only negligibly. The results of calculations with a simple model are in satisfactory agreement with the observations on proton-carbon scattering.