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

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 q^2 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.

arXiv comment9 pages. An additional figure illustrating the effect of a momentum dependent rho-meson width is included. This and related papers may also be obtained from http://www.phys.washington.edu/~derek/Publications.html

References in corpus (5)

• The Momentum Dependence of the $\rho -\omega$ Mixing Amplitude in a Hadronic Model
• Constraints on the momentum dependence of rho-omega mixing
• The Off Shell $\rho$-$\omega$ Mixing in the QCD Sum Rules
• Charge-Symmetry Breaking, Rho-Omega Mixing and the Quark Propagator
• Charge symmetry breaking via rho-omega mixing from model quark-gluon dynamics

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• Finite-width effects on Delta baryons in QCD Sum Rules
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• Instanton Effects in QCD Sum Rules for the $0^{++}$ Hybrid
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