Vector Meson Mixing and Charge Symmetry Violation

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 q^2=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.

7 pages, uses epsfig.sty. Publication details added to title page

References in corpus (9)

• Constraints on the momentum dependence of rho-omega mixing
• Charge-Symmetry Breaking, Rho-Omega Mixing and the Quark Propagator
• Rho-omega Mixing and the Pion Electromagnetic Form-Factor
• Rho - omega mixing in chiral perturbation theory
• Charge symmetry breaking via rho-omega mixing from model quark-gluon dynamics
• Charge-Symmetry-Breaking Potentials from Isospin-Violating Meson-Baryon Coupling Constants
• Two Model-Independent Results for the Momentum Dependence of Rho-Omega Mixing
• $\rho \omega$--Mixing and the Pion Electromagnetic Form Factor in the Nambu--Jona-Lasinio Model
• Comparison of Chiral Perturbation Theory and QCD Sum Rule Results for Pseudoscalar Isoscalar-Isovector Mixing

Cited by in corpus (4)

• Charge Symmetry Breaking and QCD
• Direct CP Violation, Branching Ratios and Form Factors $B\to \pi$, $B\to K$ in $B$ Decays
• Light vector and axial mesons effective couplings to constituent quarks
• Enhanced direct CP violation in $B^{\pm ,0}\to {\pi }^{+}{\pi }^{-}{K}^{\pm ,0}$