Perturbative renormalization in parton distribution functions using   Overlap fermions and Symanzik improved gluons
  We calculate the 1-loop renormalization of the fermion self-energy, all local fermion bilinears, as well as a set of extended bilinears which form a basis corresponding to moments of the parton distribution functions.   We use the overlap action for fermions and Symanzik improved action for gluons.   Our results are presented as a function of the overlap parameter rho and the parameters entering the Symanzik action. 
M. Ioannou and H. Panagopoulos (Department of Physics, University of   Cyprus, Nicosia, Cyprus)