Vector meson mixing and charge symmetry violation.
Date
1996
Authors
O'Connell, H.
Williams, A.
Bracco, M.
Krein, G.
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Journal article
Citation
Physics Letters B, 1996; 370(1-2):12-16
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H.B. O’Connell, A.G. Williams, M. Bracco, G. Krein
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Abstract
We discuss the consistency of the traditional vector meson dominance (VMD) model for photons coupling to matter, with the vanishing of vector meson-meson and meson-photon mixing self-energies at q2 = 0. This vanishing of vector mixing has been demonstrated in the context of rho-omega mixing for a large class of effective theories. As a further constraint on such models, we here apply them to a study of photon-meson mixing and VMD. As an example we compare the predicted momentum dependence of one such model with a momentum-dependent version of VMD discussed by Sakurai in the 1960's. We find that it produces a result which is consistent with the traditional VMD phenomenology. We conclude that comparison with VMD phenomenology can provide a useful constraint on such models.
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Copyright © 1996 Published by Elsevier B.V.