On extracting the r-w mixing amplitude from the pion form-factor
Date
1998
Authors
Williams, A.
O'Connell, H.
Thomas, A.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Conference paper
Citation
Nuclear Physics A, 1998, vol.A629, iss.1-2, pp.464c-470c
Statement of Responsibility
Conference Name
International Conference on Quark Lepton Nuclear Physics (QULEN 97) - Non-Perturbative QCD Hadron Physics and Electroweak Nuclear Processes (20 May 1997 - 23 May 1997 : OSAKA, JAPAN)
Abstract
In this paper we improve and extend a recent analysis which showed that the ρ-ω 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 ω<inf>I</inf> → ππ 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 ω<inf>I</inf> → ππ and to the value assumed for the mass of the ρ<sup>0</sup>-meson.