Vector meson dominance and the rho meson

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dc.creatorBenayoun, M.
dc.creatorO'Connell, H. B.
dc.creatorWilliams, A. G.
dc.date1998-07-29
dc.date1999-03-05
dc.date.accessioned2026-07-07T11:09:50Z
dc.date.available2026-07-07T11:09:50Z
dc.descriptionWe discuss the properties of vector mesons, in particular the rho^0, in the context of the Hidden Local Symmetry (HLS) model. This provides a unified framework to study several aspects of the low energy QCD sector. Firstly, we show that in the HLS model the physical photon is massless, without requiring off field diagonalization. We then demonstrate the equivalence of HLS and the two existing representations of vector meson dominance, VMD1 and VMD2, at both tree level and one loop order. Finally the S matrix pole position is shown to provide a model and process independent means of specifying the rho mass and width, in contrast to the real axis prescription currently used in the Particle Data Group tables.
dc.description18 pages, REVTEX
dc.identifierhttps://arxiv.org/abs/hep-ph/9807537
dc.identifierhttp://arxiv.org/abs/hep-ph/9807537
dc.identifierPhys.Rev.D59:074020,1999
dc.identifierdoi:10.1103/PhysRevD.59.074020
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/190602
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleVector meson dominance and the rho meson
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