Pion production by protons and3He on a197Au target at beam energies of 2.8, 5, 10, and 16.587 GeV/nucleon

Abstract

Based on a relativistic Boltzmann-Uehling-Uhlenbeck transport model, proton-and 3 He-induced reactions on a 197 Au target at beam energies of 2.8, 5, 10, and 16.587 GeV/nucleon are studied. It is found that compared with proton-induced reactions, 3 He-induced reactions give larger cross sections of pion production, about 5 times those of the proton-induced reactions. And more importantly, pion production from 3 He-induced reaction is more inclined to low-angle emission. Neutrino production via positively charged pion is also discussed accordingly.