Poster presented by Howard Trottier
Topic: Improvement and Renormalization
Two-loop mass renormalizations from large beta Monte Carlo
Abstract: Monte Carlo simulations at very large beta, deep in the perturbative region of a lattice theory, may provide a simple means for extracting perturbative quantities for very complex actions. In particular perturbative quark mass renormalizations can, in principle, be obtained directly from simulations of quark correlation functions at very large beta. Previous work has shown that this approach provides reliable one-loop mass renormalizations. In this talk, progress towards two-loop masses is reported. In particular various systematic effects, including the choice of gauge, are addressed. Some preliminary numerical results are presented, featuring a comparison with the analytical result for the two-loop static quark self-energy.