Resolution-dependent quark masses from meson correlators
  We explore the impact of a resolution-dependent constituent quark mass, as recently applied to diffractive meson production, in QCD correlation functions of several spin-0 and spin-1 meson channels. We compare the resulting correlators with experimental and lattice data, analyze the virtues and limitations of the approach, and discuss the channel dependence of the obtained effective quark masses. 
Hilmar Forkel (1 and 2) and Kai Schwenzer (2) ((1) University of   Bochum, (2) University of Heidelberg)