Abstract
For Compton scattering on stable particles with spinS there exists, apart from the Thomson and the (g−2) sum rules, a set of (2S−1) total-cross-section sum rules (forS≥1) which, in unsubtracted form, are superconvergence relations. Applied to nuclei, the possible validity of this no-subtraction form can be related to asymptotic additivity. Low-energy theorems are proved to exist for all 2s+1 intrinsic multipole moments. The caseS=1 is treated in some detail.
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