PQChPT with Staggered Sea and Valence Ginsparg-Wilson Quarks: Vector   Meson Masses
  We consider partially quenched, mixed chiral perturbation theory with staggered sea and Ginsparg-Wilson valence quarks in order to extract a chiral-continuum extrapolation expression for the vector meson mass up to order O(a^2), at one-loop level. Based on general principles, we accomplish the task without explicitly constructing a sophisticated, heavy vector meson chiral Lagrangian. 
Hovhannes R. Grigoryan, Anthony W. Thomas