Bochum 1998 – scientific programme
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HK: Hadronen und Kerne
HK 66: Hadronic Probes VII, Bremsstrahlung
HK 66.9: Talk
Thursday, March 19, 1998, 16:30–16:45, G
Off-shell Effects in Nucleon-Nucleon Bremsstrahlung and Compton Scattering — •S. Scherer2 and H. W. Fearing1 — 1TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, Canada V6T 2A3 — 2Institut f"ur Kernphysik, Johannes Gutenberg-Universit"at, J. J. Becher Weg 45, D-55099 Mainz
The investigation of off-shell effects in the NN amplitude as well as in the electromagnetic vertex of the nucleon has for a long time been an important issue in NN bremsstrahlung (NNγ). Only recently has it explicitly been shown that the off-shell NN amplitude is as a matter of principle an unmeasurable quantity in NNγ [1]. We extend the analysis for the spin-0 case [1,2] to include the spin of the nucleon. We simultaneously discuss the role of field transformations and the so-called equation-of-motion terms in NNγ and Compton scattering.
[1] H. W. Fearing, nucl-th/9710061
[2] S. Scherer and H. W. Fearing, Phys. Rev. C 51, 359 (1995)