A dispersive approach to pion photo- and electroproduction

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dc.creatorDrechsel, D.
dc.creatorPasquini, B.
dc.creatorTiator, L.
dc.date2007-12-04
dc.date.accessioned2026-07-07T11:13:34Z
dc.date.available2026-07-07T11:13:34Z
dc.descriptionThe relativistic amplitudes of pion photo- and electroproduction are calculated by dispersion relations at constant t. Several sum rules and low-energy theorems for the threshold amplitudes are investigated within this technique. The continuation of the amplitudes to sub-threshold kinematics is shown to provide a unique framework to derive the low-energy constants of chiral perturbation theory by global properties of the excitation spectrum.
dc.description18 pages, 10 figures, Proc. Yang Fest, Taipei, June 2007
dc.identifierhttps://arxiv.org/abs/0712.0572
dc.identifierhttp://arxiv.org/abs/0712.0572
dc.identifierFewBodySyst.41:13-29,2007
dc.identifierdoi:10.1007/s00601-007-0184-4
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/191763
dc.subjectHigh Energy Physics - Phenomenology
dc.titleA dispersive approach to pion photo- and electroproduction
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