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Further results on O(a) improved lattice QCD to one-loop order of perturbation theory

Stefan Sint·Peter Weisz
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Abstract

We present results at one-loop order of perturbation theory for various improvement coefficients in on-shell O($a$) improved lattice QCD. In particular we determine the additive counterterm required for on-shell improvement of the isovector vector current. Employing a general mass-independent renormalization scheme we also obtain the coefficients of the O($a$) counterterms which are proportional to the quark mass in the improved isovector pseudo-scalar, axial vector and vector operators. In the latter case a comparison with a recent non-perturbative study is made.

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Stefan Sint, Peter Weisz. 1997-04-02. Further results on O(a) improved lattice QCD to one-loop order of perturbation theory. https://doi.org/10.1016/s0550-3213(97)00372-6

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