Structure of Vector Mesons in Holographic Model with Linear Confinement

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dc.creatorGrigoryan, H. R.
dc.creatorRadyushkin, A. V.
dc.date2007-06-11
dc.date2007-10-11
dc.date.accessioned2026-07-07T11:16:47Z
dc.date.available2026-07-07T11:16:47Z
dc.descriptionWave functions and form factors of vector mesons are investigated in the holographic dual model of QCD with a smooth oscillator-like wall. We introduce wave functions conjugate to solutions of the 5D equation of motion and develop a formalism based on these wave functions, which are very similar to those of a quantum-mechanical oscillator. For the lowest bound state (rho-meson), we show that, in this model, the basic elastic form factor exhibits the perfect vector meson dominance, i.e., it is given by the rho-pole contribution alone. The electric radius of the rho-meson is calculated, <r^2_rho>_C = 0.655 fm^2, which is larger than in case of the hard-wall cutoff. The squared radii of higher excited states are found to increase logarithmically rather than linearly with the radial excitation number. We calculate the coupling constant f_rho and find that the experimental value is closer to that calculated in the hard-wall model.
dc.description8 pages, RevTex4, references, comments and a figure added. Some terminoloy changes
dc.identifierhttps://arxiv.org/abs/0706.1543
dc.identifierhttp://arxiv.org/abs/0706.1543
dc.identifierPhys.Rev.D76:095007,2007
dc.identifierdoi:10.1103/PhysRevD.76.095007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/192790
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titleStructure of Vector Mesons in Holographic Model with Linear Confinement
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