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arXiv · 0805.1835

Effects of the (rho, omega, phi) mixing on the dipion mass spectrum in e+ e- annihilation and tau decay

Maurice Benayoun
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Abstract

A way to explain the puzzling difference between the pion form factor as measured in e+ e- annihilations and in tau decays is discussed. We show that isospin symmetry breaking, beside the already identified effects, produces also a full mixing between the rho0, omega and phi mesons which generates an isospin 0 component inside the rho0 meson. This effect, not accounted for in current treatments of the problem, seems able to account for the apparent mismatch between e+ e- and tau data below the phi mass.

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Maurice Benayoun. 2008-05-13. Effects of the (rho, omega, phi) mixing on the dipion mass spectrum in e+ e- annihilation and tau decay. https://arxiv.org/abs/0805.1835

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