Lattice perturbation theory by computer algebra: A three-loop result for the topological susceptibility

B. Allés, M. Campostrini, A. Feo, H. Panagopoulos
1994 Nuclear Physics B  
We present a scheme for the analytic computation of renormalization functions on the lattice, using a symbolic manipulation computer language. Our first nontrivial application is a new three-loop result for the topological susceptibility.
doi:10.1016/0550-3213(94)90632-7 fatcat:dlsajimyxnccnoubpolvlk3m2a