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Gauge Model for the Electromagnetic Form Factor and the ρ′ Meson

Kazuo Fujikawa* and P. J. O'Donnell†

  • Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Silver Street, Cambridge, CB3 9EW, England

  • *Research supported by the Science Research Council.
  • †On sabbatical leave from the University of Toronto. Research supported in part by the National Research Council of Canada.
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Phys. Rev. D 8, 3994 – Published 1 December, 1973

DOI: https://doi.org/10.1103/PhysRevD.8.3994

Abstract

Following the basic idea of the spontaneously broken gauge theory and ρ dominance and its universality, we propose a simple model for the ρ′ meson. With the identification of the Higgs scalar meson with the ε meson, we are able to give a satisfactory description of various results in electron colliding-beam experiments. The suppression of the 2π decay mode of the ρ′ meson relative to the 4π mode is determined by the scale dimension of the interaction terms. The pion form factor and the Dirac isovector form factor of the nucleon are identical in the present model, and they are in agreement with experiment.

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Phys. Rev. D 8, 3994– Published 1 December, 1973
  • Received 25 June 1973

© 1973 American Physical Society

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