Quark-gluon vertex in general kinematics
  We compute the quark-gluon vertex in quenched lattice QCD, in the Landau gauge using an off-shell mean-field O(a)-improved fermion action. The Dirac-vector part of the vertex is computed for arbitrary kinematics. We find a substantial infrared enhancement of the interaction strength regardless of the kinematics. 
Ayse Kizilersu, Derek B. Leinweber, Jon-Ivar Skullerud, Anthony G.   Williams