Rho-omega mixing and the pion electromagnetic form-factor

H.B. O'Connell, B.C. Pearce, A.W. Thomas, A.G. Williams
1995 Physics Letters B  
The suggestion of momentum dependence in the amplitude for rho-omega mixing has generated concern over related implications for vector meson dominance and the photon-rho coupling. We discuss two established representations of vector meson dominance and show that one of these is completely consistent with such a coupling. We then apply it to a calculation of the pion electromagnetic form-factor. Our analysis leads to a new value for the on-shell rho-omega mixing amplitude of (-3800 +/- 370) MeV^2.
doi:10.1016/0370-2693(95)00642-x fatcat:qkpgcuckqrduxjbuho4tmktwty