Inelastic proton scattering on complex nuclei at 27 GeV

Abstract

Inelastic interactions of 27 GeV protons (CERN proton beam) on complex nuclei have been studied. It is shown that particles producing cascades in the nuclei in which they have been produced play no important role. Dividing the events in p-p and p-n interactions we separated the primary nucleons and measured the differential and integral angular distributions of the produced π mesons. There is a very small anisotropy in the c.m.s. For the pions a mean energy of γ ss = 2.18±0.5 (rest mass units) is calculated. The degree of inelasticity K s = 0.29±0.08 agrees with a theory of Heisenberg.