Contributions of loops with dynamical vector mesons to masses and decay   constants of pseudoscalar mesons and their quark mass dependence
  The contributions of one-loop diagrams with dynamical vector mesons to masses and decay constants of pseudoscalar mesons are determined. Hereby, a relativistic Lagrangian for both the pseudoscalar-meson octet and the vector-meson nonet is used. The vector mesons are given in the antisymmetric tensor representation. Both the differences between static and dynamical vector mesons and the differences between calculations with and without vector mesons are studied as functions of the light quark mass. 
Carla Terschl\"usen and Stefan Leupold (Uppsala University)
hep-ph