One-loop renormalization of the QCD Schrödinger functional

Details One-loop renormalization of the QCD Schrödinger functional One-loop renormalization of the QCD Schrödinger functional

1995-04-08

arxiv.org/abs/hep-lat/9504005v1

Nucl.Phys. B451 (1995) 416-444

Physics

High Energy Physics

High Energy Physics - Lattice

31 pages, uuencoded postscript file, no figures

Scientific paper

10.1016/0550-3213(95)00352-S

In a previous publication, we have constructed the Schr\"odinger functional in Wilson's lattice QCD. It was found that the naive continuum limit leads to a well-defined classical continuum theory. Starting from the latter, a formal continuum definition of the Schr\"odinger functional is given and its saddle point expansion is carried out to one-loop order of perturbation theory. Dimensional regularization and heat kernel techniques are used to determine the one-loop divergences. These are partly canceled by the usual renormalizations of the quark mass and the coupling constant in QCD. An additional divergence can be absorbed in a multiplicative renormalization of the quark boundary fields. The corresponding boundary counterterm is a local polynomial in the fields, so that we confirm a general expectation of Symanzik.

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