Few Body Systems and Nuclear Forces II pp 68-85 | Cite as

# Off-Shell Effects in the Nucleon-Nucleon System

Conference paper

## 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”.

$$
A + B \to C + D + \gamma $$

(1)

$$
A + B \to C + D$$

## Keywords

Pion Exchange Couple Channel Calculation Unpolarized Cross Section Bremsstrahlung Cross Section Photon Angle
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## References

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© Springer-Verlag Berlin Heidelberg 1978