Dielectron production in proton-nucleus reactions

Abstract
Dielectron production in proton-nucleus reactions is studied in the cascade model. In addition to production from the proton-neutron bremsstrahlung and the decay of delta, we have also taken into account the contribution from the pion-nucleon interaction. The calculated dielectron invariant mass spectra are compared to the data obtained recently for proton-Be reactions at incident energies of 1.05, 2.1, and 4.9 GeV.