Extracting the ϱ-ω mixing amplitude from the pion form-factor

We re-examine 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 conf...更多