The Calculation of the Perturbative Expansion of Wilson Operators on Lattice
نویسندگان
چکیده
We introduce an approach to expand gauge-invariant Wilson operators on lattice. This approach is based on non-abelian Stokes theorem and overcomes some shortage of some former methods. It is also suitable for expanding any Wilson operator on lattice.
منابع مشابه
Perturbative renormalization parameters for heavy quarks ∗
Formulation of the heavy quark on the lattice, such as NRQCD[1] or the Fermilab approach with the Wilson-like relativistic quarks[2], requires perturbative matching with the continuum theory. Since the quark mass in the lattice unit cannot be neglected for these theories, the perturbative calculation is much more involved and have not developed as that for the massless case. We report the curre...
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