Quark masses from quenched overlap fermions
  We compute light and strange quark masses for quenched overlap fermions at two values of the gauge coupling. The renormalisation is done non-perturbatively. We test the predictions of quenched chiral perturbation theory for the quark mass dependence of the hadron spectrum and see evidence for the existence of chiral logs. 
Martin G\"urtler, Thomas Streuer, Gerrit Schierholz, David Galletly,   Roger Horsley, Paul Rakow