Rho-omega mixing, vector meson dominance and the pion form-factor

We review the current status of ϱ-ω mixing and discuss its implication for our understanding of charge-symmetry breaking. In order to place this work in context we also review the photon-hadron coupling within the framework of vector meson dominance. This leads naturally to a discussion of the electromagnetic form-factor of the pion and of nuclear shadowing.H.B. O'Connell, B.C. Pearce, A.W. Thomas and A.G. William