Dispersion Relations and the Nucleon Polarizability

Abstract

Recent experimental results on the proton and neutron polarizabilities are examined from the point of view of backward dispersion relations. Results are found to be in reasonable agreement with the measured values. A rigorous relationship between the nucleon and pion polarizabilities is derived and shown to be in excellent agreement with several models.

(UMHEP-404, 18 pg. Latex, figures available upon request from [email protected])

References in corpus (2)

• Photon-Photon Scattering, Pion Polarizability and Chiral Symmetry
• Response of nucleons to external probes in hedgehog models: I. Electromagnetic polarizabilities

Cited by in corpus (25)

• Dispersion relations in real and virtual Compton scattering
• Using effective field theory to analyse low-energy Compton scattering data from protons and light nuclei
• Measurement of the Electric and Magnetic Polarizabilities of the Proton
• Polarizability of the Nucleon and Compton Scattering
• Fixed-t subtracted dispersion relations for Compton scattering off the nucleon
• The Polarizability of the Deuteron
• Deuteron Compton scattering below pion photoproduction threshold
• Gamma-Deuteron Compton Scattering in Effective Field Theory
• Hadron structure at low Q^2
• Compton Scattering from the Deuteron and Extracted Neutron Polarizabilities
• Hadron Polarizabilities
• Theory of the Lamb shift and Fine Structure in muonic ${}^4\mathrm{He}$ ions and the muonic ${}^3\mathrm{He}{-}^4\mathrm{He}$ Isotope Shift
• Compton Scattering by the Proton
• The sigma -> gamma gamma Width from Nucleon Electromagnetic Polarizabilities
• Sum rule for the backward spin polarizability of the nucleon from a backward dispersion relation
• Neutron Polarizabilities From Compton Scattering on the Deuteron?
• Electromagnetic polarizabilities and the excited states of the nucleon
• Dispersion theory of nucleon Compton scattering and polarizabilities
• Dirac-Foldy term and the electromagnetic polarizability of the neutron
• Elementary quantum mechanics of the neutron with an electric dipole moment
• Hyperon forward spin polarizabilty gamma0
• Meson exchange and nucleon polarizabilities in the quark model
• Obtaining sigma --> gamma gamma Width from Nucleon Polarizabilities
• Compton Scattering by the Nucleon
• Pion and Sigma Polarizabilities and Radiative Transitions