On extracting the rho-omega mixing amplitude from the pion form-factor
High Energy Physics - Phenomenology
2008-11-26 v1
Abstract
In this paper we improve 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 -> pi pi 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 -> pi pi and to the value assumed for the mass of the rho^0-meson.
Keywords
Cite
@article{arxiv.hep-ph/9707253,
title = {On extracting the rho-omega mixing amplitude from the pion form-factor},
author = {A. G. Williams and H. B. O'Connell and A. W. Thomas},
journal= {arXiv preprint arXiv:hep-ph/9707253},
year = {2008}
}
Comments
8 pages, uses espcrc1.sty (provided in uufile). Talk given at the Int. Conf. on Quark Lepton Nuclear Physics, Osaka, May 20 - 23, 1997