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arXiv · hep-ph/0105218

The Counting of Generalized Polarizabilities

Richard F. Lebed
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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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Richard F. Lebed. 2001-08-02. The Counting of Generalized Polarizabilities. https://doi.org/10.1103/physrevd.64.094012

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