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

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

1995-07-13

arxiv.org/abs/nucl-th/9507026v3

Phys.Lett. B386 (1996) 55

Physics

Nuclear Physics

Nuclear Theory

10 pages. Revised manuscript accepted for publication. This and related papers may also be obtained from http://www.phys.was

Scientific paper

10.1016/0370-2693(96)00914-8

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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