The Counting of Generalized Polarizabilities
High Energy Physics - Phenomenology
2009-11-07 v2 Nuclear Theory
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}).
Cite
@article{arxiv.hep-ph/0105218,
title = {The Counting of Generalized Polarizabilities},
author = {Richard F. Lebed},
journal= {arXiv preprint arXiv:hep-ph/0105218},
year = {2009}
}
Comments
10 pages, revtex4, no figures. Version to appear in Phys. Rev. D. Paper now divided into sections and clarifying comments added, but physics content unchanged