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High Energy Physics - Phenomenology

arXiv:hep-ph/9807537 (hep-ph)
[Submitted on 29 Jul 1998 (v1), last revised 5 Mar 1999 (this version, v2)]

Title:Vector meson dominance and the rho meson

Authors:M. Benayoun, H.B. O'Connell, A.G. Williams
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Abstract: We 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.
Comments: 18 pages, REVTEX
Subjects: High Energy Physics - Phenomenology (hep-ph); Nuclear Theory (nucl-th)
Report number: ADP-98-45/T315, LPNHE 98-03, UK/98-04
Cite as: arXiv:hep-ph/9807537
  (or arXiv:hep-ph/9807537v2 for this version)
  https://doi.org/10.48550/arXiv.hep-ph/9807537
Journal reference: Phys.Rev.D59:074020,1999
Related DOI: https://doi.org/10.1103/PhysRevD.59.074020

Submission history

From: Heath O'Connell [view email]
[v1] Wed, 29 Jul 1998 14:28:15 UTC (19 KB)
[v2] Fri, 5 Mar 1999 00:16:23 UTC (20 KB)
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