Pion productions by proton and Helium-3 on Au197 target at beam energies of 2.8, 5, 10 and 16.587 GeV/nucleon

TL;DR

This study uses a transport model to compare pion production in proton and Helium-3 induced reactions on gold at various energies, revealing larger cross sections and angular differences for Helium-3.

Contribution

It provides the first detailed comparison of pion production between proton and Helium-3 induced reactions on gold at these energies using a relativistic transport model.

Findings

Helium-3 reactions produce about 5 times more pions than proton reactions.

Pion emission from Helium-3 reactions is more low-angle inclined.

Discussion of neutrino production via charged pions.

Abstract

Based on a Relativistic Boltzmann-Uehling- Uhlenbeck transport model, proton and $^{3}$He induced reactions on $^{197}$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.