One-loop Renormalization of the Qcd Schrr Odinger Functional

نویسنده

  • Stefan Sint
چکیده

In a previous publication, we have constructed the Schrr odinger functional in Wil-son's lattice QCD. It was found that the naive continuum limit leads to a well-deened classical continuum theory. Starting from the latter, a formal continuum deenition of the Schrr 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 elds. The corresponding boundary counterterm is a local polynomial in the elds, so that we connrm a general expectation of Symanzik.

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تاریخ انتشار 1995