Perturbative renormalisation of quark bilinear operators for overlap   fermions with and without stout links and improved gauge action
  We calculate lattice renormalisation constants of local and one-link quark operators for overlap fermions and improved gauge actions in one-loop perturbation theory. For the local operators we stout smear the SU(3) links in the fermionic action. Using the popular tadpole improved L\"uscher-Weisz actions at $\beta=8.45$ and $\beta=8.0$ we present numerical values for the Z factors in the $\bar{MS}$ scheme (partly as function of the stout smearing strength). We compare various levels of mean field (tadpole) improvement which have been applied to our results. 
R. Horsley (Edinburgh), H. Perlt (Regensburg, Leipzig), P.E.L. Rakow   (Liverpool), G. Schierholz (DESY), A. Schiller (Leipzig)