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The Infrared Landau Gauge Gluon Propagator from Lattice QCD

Authors: O. Oliveira, P. J. Silva

Ref.: AIP Conf. Proc. 756, 290 (2005)

Abstract: The quenched Landau gauge gluon propagator is investigated in lattice QCD with large assimetric lattices, accessing momenta as low as $q \sim 100$ MeV or smaller. Our investigation focus on the IR limit of the gluon dressing function, testing the compatibility with recent solutions of the Dyson-Schwinger equations. In particular, the low energy parameters $\kappa$ and $\alpha (0)$ are measured.