Proton Spectra in High-Energy Pion-Nuclei Collisions Not Accompanied by Multiparticle Production

摘要

Multiplicity, energy and angular distributions of protons of energies over 20MeV emitted in pion-xenon nuclei collisions at 3.5GeV/c are presented in reactions not accompanied by the multiparticle production.It is shown that the energy spectra of fast protons emitted forward and those emitted in backward direction are lying in the kinetic energy intervals 20-250 MeV. The ratio of the number of protons emitted in the forward direction to the number of those in backward direction equals 1.78+-0.11 in the sample of all 318 events, and 1.69+-0.20 in events with zero secondary pions. Asymmetry is shown in the azimuth angle distribution of protons; inmonotony of proton multiplicity distribution is seen. (Atomindex citation 10:493455)