Abstract
When studying the bremsstrahlung reaction
we shall suppose that the scattering amplitude for the corresponding nonradiative process
is already known. The latter will sometimes be referred to as “elastic” scattering, but it is not necessary that the final particles (C and D) be the same as the initial ones (A and B). For particles with spin, this requires a knowledge of each of the independent spin amplitudes, although for some purposes., lesser information — such as the unpolarized cross section — may suffice. It will also be assumed that the static electromagnetic moments of the particles A, B, C, and D are known. Together with nonradiative amplitude(s), this will be referred to as “on-shell information”.
Work performed inder the auspices of the U.S. Department of Energy
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References
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Heller, L. (1978). Off-Shell Effects in the Nucleon-Nucleon System. In: Zingl, H., Haftel, M., Zankel, H. (eds) Few Body Systems and Nuclear Forces II. Lecture Notes in Physics, vol 87. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-09099-1_4
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