Extracting the rho-omega mixing amplitude from the pion form-factor

Details Extracting the rho-omega mixing amplitude from the pion form-factor Extracting the rho-omega mixing amplitude from the pion form-factor

1997-03-05

arxiv.org/abs/hep-ph/9703248v2

Nucl.Phys.A623:559-569,1997

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, publication details added to title page

Scientific paper

10.1016/S0375-9474(97)88425-4

We re-examine and extend a recent analysis which showed that the rho-omega mixing amplitude cannot be unambiguously extracted from the pion electromagnetic form-factor in a model independent way. In particular, we focus on the argument that the extraction is sensitive to the presence of any intrinsic omega_I -> 2pi coupling. Our extended analysis confirms the original conclusion, with only minor, quantitative differences. The extracted mixing amplitude is shown to be sensitive to both the intrinsic coupling omega_I -> 2pi and to the value assumed for the mass of the neutral rho meson.

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