Model-independent extraction of two-photon effects in elastic electron-proton scattering

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dc.creatorBelushkin, M. A.
dc.creatorHammer, H. -W.
dc.creatorMeißner, U. -G.
dc.date2007-05-23
dc.date.accessioned2026-07-07T10:55:47Z
dc.date.available2026-07-07T10:55:47Z
dc.descriptionWe address the discrepancy between the Rosenbluth and polarization transfer data for the electromagnetic form factors of the nucleon. Assuming that the effect of two-photon corrections on the polarization transfer data is negligible, we obtain a model-independent estimate of the two-photon correction Delta^(2γ). We analyze the polarization transfer data and the cross section data separately using dispersion relations. A central value as well as an error estimate for Delta^(2γ) is then obtained from a comparison of the two analyses. The resulting values for Delta^(2γ) are in good agreement with direct calculations available in the literature.
dc.description7 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/0705.3385
dc.identifierhttp://arxiv.org/abs/0705.3385
dc.identifierPhys.Lett.B658:138-142,2008
dc.identifierdoi:10.1016/j.physletb.2007.10.031
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/186191
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleModel-independent extraction of two-photon effects in elastic electron-proton scattering
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