Sum rules and dualities for generalized parton distributions: is there a holographic principle?

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dc.creatorKumericki, Kresimir
dc.creatorMueller, Dieter
dc.creatorPassek-Kumericki, Kornelija
dc.date2008-05-01
dc.date2008-10-17
dc.date.accessioned2026-07-07T12:14:29Z
dc.date.available2026-07-07T12:14:29Z
dc.descriptionTo leading order approximation, the physical content of generalized parton distributions (GPDs) that is accessible in deep virtual electroproduction of photons or mesons is contained in their value on the cross-over trajectory. This trajectory separates the t-channel and s-channel dominated GPD regions. The underlying Lorentz covariance implies correspondence between these two regions through their relation to GPDs on the cross-over trajectory. This point of view leads to a family of GPD sum rules which are a quark analogue of finite energy sum rules and it guides us to a new phenomenological GPD concept. As an example, we discuss the constraints from the JLab/Hall A data on the dominant u-quark GPD H. The question arises whether GPDs are governed by some kind of holographic principle.
dc.description45 pages, 4 figures, Sect. 2 reorganized for clarity. Typos in Eq. (20) corrected. 4 new refs. Matches published version
dc.identifierhttps://arxiv.org/abs/0805.0152
dc.identifierhttp://arxiv.org/abs/0805.0152
dc.identifierEur.Phys.J.C58:193-215,2008
dc.identifierdoi:10.1140/epjc/s10052-008-0741-0
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/211208
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Experiment
dc.subjectHigh Energy Physics - Theory
dc.titleSum rules and dualities for generalized parton distributions: is there a holographic principle?
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