Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2007-10-02
PoSLAT2007:251,2007
Physics
High Energy Physics
High Energy Physics - Lattice
7 pages, 7 figures, contribution to Lattice 2007
Scientific paper
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.
Ilgenfritz Ernst-Michael
Perlt Holger
Schiller Avraham
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