出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We calculate loop contributions up to four loops to the Landau gauge gluon propagator in numerical
stochastic perturbation theory. For different lattice volumes we carefully extrapolate the Euler
time step to zero for the Langevin dynamics derived from the Wilson action. The one-loop result
for the gluon propagator is compared to the infinite volume limit of standard lattice perturbation
theory.
