PROTON-PROTON BREMSSTRAHLUNG CALCULATIONS

Revised calculations of the cross section for the process P+PP+P+ are presented, using several models and various approximations. These are compared to the latest calculations of other authors. For the Hamada-Johnston potential, they are found to be in good agreement with the data, and with only a small discrepancy among authors. However, strong discrepancies are found with previously published values for the Tabakin and Bryan-Scott potentials and for the Feshbach-Yennie approximation. It is estimated that inclusion of the Coulombic interaction of the protons lowers most of the cross sections by 5-10%. © 1969 The American Physical Society.