Nucleon Form Factors and Hidden Symmetry in Holographic QCD

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dc.creatorHong, Deog Ki
dc.creatorRho, Mannque
dc.creatorYee, Ho-Ung
dc.creatorYi, Piljin
dc.date2007-10-25
dc.date2008-01-22
dc.date.accessioned2026-07-07T11:12:35Z
dc.date.available2026-07-07T11:12:35Z
dc.descriptionThe vector dominance of the electromagnetic form factors both for mesons and baryons arises naturally in holographic QCD, where both the number of colors and the 't Hooft coupling are taken to be very large, offering a bona-fide derivation of the notion of vector dominance. The crucial ingredient for this is the infinite tower of vector mesons in the approximations made which share features that are characteristic of the quenched approximation in lattice QCD. We approximate the infinite sum by contributions from the lowest four vector mesons of the tower which turn out to saturate the charge and magnetic moment sum rules within a few percent and compute them totally free of unknown parameters for momentum transfers Q^2 less than 1GeV^2. We identify certain observables that can be reliably computed within the approximations and others that are not, and discuss how the improvement of the latter can enable one to bring holographic QCD closer to QCD proper.
dc.description18 pages, 4 figures, revtex4; one reference added, final version to appear in Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/0710.4615
dc.identifierhttp://arxiv.org/abs/0710.4615
dc.identifierPhys.Rev.D77:014030,2008
dc.identifierdoi:10.1103/PhysRevD.77.014030
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/191431
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.subjectNuclear Theory
dc.titleNucleon Form Factors and Hidden Symmetry in Holographic QCD
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