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Rho-Omega Mixing via QCD Sum Rules with Finite Mesonic Widths

M. J. Iqbal·Xuemin Jin·Derek B. Leinweber
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Abstract

Based on the analysis of both Borel and Finite-Energy QCD sum rules, the inclusion of finite mesonic widths leads to a dramatic effect on the predictions for the momentum dependence of the rho-omega mixing matrix element. It is shown that the rho-omega mixing matrix element traditionally discussed in the literature, has the same sign and similar magnitude in the space-like region as its on-shell value. This contrasts the zero-width result where the mixing matrix element is typically of opposite sign in the space-like region.

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M. J. Iqbal, Xuemin Jin, Derek B. Leinweber. 1996-08-29. Rho-Omega Mixing via QCD Sum Rules with Finite Mesonic Widths. https://doi.org/10.1016/0370-2693(96)00914-8

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