title: Quantum electrodynamics for vector mesons.
abstract: Quantum electrodynamics for rho mesons is considered. It is shown that, at the tree level, the value of the gyromagnetic ratio of the rho+ is fixed to 2 in a self-consistent effective quantum field theory. Further, the mixing parameter of the photon and the neutral vector meson is equal to the ratio of electromagnetic and strong couplings, leading to the mass difference M(rho0)-M(rho+/-) approximately 1 MeV at tree order.
authors.affiliation: Institut für Kernphysik, Johannes Gutenberg-Universität, 55099 Mainz, Germany.
authors.forename: Dalibor
authors.initials: D
authors.lastname: Djukanovic
authors.forename: Matthias R
authors.initials: MR
authors.lastname: Schindler
authors.forename: Jambul
authors.initials: J
authors.lastname: Gegelia
authors.forename: Stefan
authors.initials: S
authors.lastname: Scherer