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Mesonic Width Effects on the Momentum Dependence of the Rho-Omega Mixing Matrix Element

M. J. Iqbal, Xuemin Jin, Derek B. Leinweber

nucl-tharXiv:nucl-th/9504026

Abstract

It is shown, in a model independent way, that the large difference in rho and omega widths gives rise to a new source of momentum dependence for the rho-omega 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 rho and omega meson widths.

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