High-precision computation of two-loop Feynman diagrams with Wilson fermions
Stefano Capitani, Sergio Caracciolo, Andrea Pelissetto, Giancarlo Rossi
Abstract
We apply the coordinate-space method by Luescher and Weisz to the computation of two-loop diagrams in full QCD with Wilson fermions on the lattice. The essential ingredient is the high-precision determination of mixed fermionic-bosonic propagators.
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