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https://hdl.handle.net/2440/10858
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Type: | Conference paper |
Title: | On extracting the r-w mixing amplitude from the pion form-factor |
Author: | Williams, A. O'Connell, H. Thomas, A. |
Citation: | Nuclear Physics A, 1998, vol.A629, iss.1-2, pp.464c-470c |
Publisher: | ELSEVIER SCIENCE BV |
Issue Date: | 1998 |
ISSN: | 0375-9474 |
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 ωI → 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 ωI → ππ and to the value assumed for the mass of the ρ0-meson. |
DOI: | 10.1016/S0375-9474(97)00723-9 |
Published version: | http://dx.doi.org/10.1016/S0375-9474(97)00723-9 |
Appears in Collections: | Aurora harvest 7 Special Research Centre for the Subatomic Structure of Matter publications |
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