Production cross sections of -rays, electrons, and positrons in p–p collisions

Because the production cross sections of γ rays, electrons, and positrons (e±) made in p–p collisions, σ pp → γ and σ pp → e ± , respectively, are kinematically equivalent with respect to the parent pion-production cross section σ pp → π , we obtain σ pp → e ± directly from the machine data on σ pp → γ . In Paper I (Sato et al., 2012 [1]), we give explicitly σ pp → γ , reproducing quite well the accelerator data with LHC, namely σ pp → e ± is applicable enough over the wide energy range from GeV to 20 PeV for projectile proton energy. We discuss in detail the relation between the cross sections, and present explicitly σ pp → e ± that are valid into the PeV electron energy.