Mesonic width effects on the momentum dependence of the ϱ-ω mixing matrix element
1996
Abstract It is shown, in a model independent way, that the large difference in ϱ and ω widths gives rise to a new source of momentum dependence for the ϱ-ω mixing matrix element. The q2 dependence arising due to the meson widths leads to a significant alteration of the result obtained in the zero-width approximation usually discussed in the literature. The origin of this strong momentum dependence lies in the difference between the ϱ and ω meson widths.
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