Charge asymmetry for electron (positron)-proton elastic scattering at large angle

dc.creatorKuraev, E. A.
dc.creatorBytev, V. V.
dc.creatorBakmaev, S.
dc.creatorTomasi-Gustafsson, E.
dc.date2007-10-19
dc.date.accessioned2026-07-07T11:53:41Z
dc.date.available2026-07-07T11:53:41Z
dc.descriptionCharge asymmetry in electron (positron) scattering arises from the interference of the Born amplitude and the box-type amplitude corresponding to two virtual photons exchange. It can be extracted from electron proton and positron proton scattering experiments, in the same kinematical conditions. Considering the virtual photon Compton scattering tensor, which contributes to the box-type amplitude, we separate proton and inelastic contributions in the intermediate state and parametrize the proton form-factors as the sum of a pure QED term and a strong interaction term. Arguments based on analyticity are given in favor of cancellation of contributions from proton strong interaction form factors and of inelastic intermediate states in the box type amplitudes. In frame of this model, with a realistic expression for nucleon form-factors, numerical estimations are given for moderately high energies.
dc.description14 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0710.3699
dc.identifierhttp://arxiv.org/abs/0710.3699
dc.identifierPhys.Rev.C78:015205,2008
dc.identifierdoi:10.1103/PhysRevC.78.015205
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/204631
dc.subjectHigh Energy Physics - Phenomenology
dc.titleCharge asymmetry for electron (positron)-proton elastic scattering at large angle
dc.typetext

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