Off-Energy-Shell Effects in Proton-Proton Bremsstrahlung at 99 MeV

Abstract
Calculations of the proton-proton bremsstrahlung cross section using off-energy-shell pole amplitudes are compared with calculations in which the off-energy-shell dependence is suppressed. The differences in these cross sections and 4½ times greater than the errors in the 99-MeV measurements of Sannes, Trischuk, and Stairs, and the off-energy-shell calculation clearly gives the better agreement with these data.