Low-energy and low-momentum representation of the virtual Compton scattering amplitude

(2) Department of Subatomic; 3); (3) National Science Center; (4) Institut fuer Theoretische Physik; A. Metz (4); A. Yu. Korchin (2; D. Drechsel (1); G. Knoechlein (1); Kharkov; Radiation Physics

arxiv: nucl-th/9804078 · v1 · submitted 1998-04-30 · ⚛️ nucl-th · hep-ph

Low-energy and low-momentum representation of the virtual Compton scattering amplitude

D. Drechsel (1) , G. Knoechlein (1) , A. Yu. Korchin (2 , 3) , A. Metz (4) , S. Scherer (1) ((1) Institut fuer Kernphysik , Univ. Mainz , (2) Department of Subatomic

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Radiation Physics University of Gent (3) National Science Center Kharkov (4) Institut fuer Theoretische Physik Univ. Heidelberg)

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classification ⚛️ nucl-th hep-ph

keywords comptonscatteringvirtualamplitudeexpansionpolarizabilitiesrealregime

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We perform an expansion of the virtual Compton scattering amplitude for low energies and low momenta and show that this expansion covers the transition from the regime to be investigated in the scheduled photon electroproduction experiments to the real Compton scattering regime. We discuss the relation of the generalized polarizabilities of virtual Compton scattering to the polarizabilities of real Compton scattering.

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Low-energy and low-momentum representation of the virtual Compton scattering amplitude

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