Light-front interpretation of Proton Generalized Polarizabilities

Details Light-front interpretation of Proton Generalized Polarizabilities Light-front interpretation of Proton Generalized Polarizabilities

2009-11-15

arxiv.org/abs/0911.2882v2

Phys.Rev.Lett.104:112001,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 4 figures, reference added, minor typos corrected

Scientific paper

10.1103/PhysRevLett.104.112001

We extend the recently developed formalism to extract light-front quark charge densities from nucleon form factor data to the deformations of these quark charge densities when applying an external electric field. We show that the resulting induced polarizations can be extracted from proton generalized polarizabilities. The available data for the generalized electric polarizabilitiy of the proton yield a pronounced structure in its induced polarization at large transverse distances, which will be pinned down by forthcoming high precision virtual Compton scattering experiments.

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