The Counting of Generalized Polarizabilities
classification
✦ hep-ph
nucl-th
keywords
generalizednumberarbitrarycharacterizingcomptonconciseconservationcounting
read the original abstract
We demonstrate a concise method to enumerate the number of generalized polarizabilities---quantities characterizing the independent observables in singly-virtual Compton scattering---for a target particle of arbitrary spin s. By using crossing symmetry and J^{PC} conservation, we show that this number is (10s+1+delta_{s,0}).
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