Dispersion relation formalism for virtual Compton scattering off the proton
Feb, 2001
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Abstract:
We present in detail a dispersion relation formalism for virtual Compton scattering (VCS) off the proton from threshold into the -resonance region. Such a formalism can be used as a tool to extract the generalized polarizabilities of the proton from both unpolarized and polarized VCS observables over a larger energy range. We present calculations for existing and forthcoming VCS experiments and demonstrate that the VCS observables in the energy region between pion production threshold and the -resonance show an enhanced sensitivity to the generalized polarizabilities.Note:
- 51 pages, 15 figures
- photon p: Compton scattering
- off-shell
- polarization
- dispersion relation
- Delta(1232)
- p: polarizability
- electron p: exclusive reaction
- photon: electroproduction
- helicity
- pi: photoproduction
References(28)
Figures(15)