Light-front interpretation of Proton Generalized Polarizabilities

Abstract

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.

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

References in corpus (3)

• Unitary Isobar Model - MAID2007
• Empirical transverse charge densities in the nucleon and the nucleon-to-$\Delta$ transition
• Empirical transverse charge densities in the deuteron

Cited by in corpus (21)

• Transverse Charge Densities
• Nucleon Polarizabilities: from Compton Scattering to Hydrogen Atom
• Dispersion Theory in Electromagnetic Interactions
• Virtual Compton Scattering and the Generalized Polarizabilities of the Proton at Q^2=0.92 and 1.76 GeV^2
• Nucleon relativistic polarization and magnetization distributions
• Generalized polarizabilities of the nucleon in baryon chiral perturbation theory
• On the deuteron relativistic charge distributions
• The MAID Legacy and Future
• Measured proton electromagnetic structure deviates from theoretical predictions
• Real and Virtual Compton Scattering: the nucleon polarisabilities
• Spin-dependent sum rules connecting real and virtual Compton scattering verified
• Virtual Compton Scattering and Nucleon Generalized Polarizabilities
• Virtual Compton Scattering measurements in the nucleon resonance region
• New Insight in the $Q^2$-Dependence of Proton Generalized Polarizabilities
• Measurement of the Beam-Recoil Polarization in Low-Energy Virtual Compton Scattering from the Proton
• Leading-order QED radiative corrections to timelike Compton scattering on the proton
• Nucleon Polarizabilities: Theory
• Virtual Compton scattering at low energies with a positron beam
• Soft-photon radiative corrections to the $e^{-}p\to e^{-}p{l}^{-}{l}^{+}$ process
• The Proton Electromagnetic Generalized Polarizabilities
• A Tale Of Two Amplitudes In High Energy Physics