One-loop renormalization of fermionic currents with the overlap-Dirac operator
نویسندگان
چکیده
منابع مشابه
One-loop renormalization of fermionic currents with the overlap-Dirac operator
We compute the one-loop lattice renormalization of the two-quark operators ψ̄Γψ, where Γ denotes the generic Dirac matrix, for the lattice formulation of QCD using the overlap-Dirac operator. We also study the renormalization of quark bilinears which are more extended and have better chiral properties. Finally, we present improved estimates of these renormalization constants, coming from cactus ...
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We compute the ratio between the scale ΛL associated with a lattice formulation of QCD using the overlap-Dirac operator, and Λ MS . To this end, the one-loop relation between the lattice coupling g0 and the coupling renormalized in the MS scheme is calculated, using the lattice background field technique. We also compute the one-loop renormalization ZΓ of the two-quark operators ψ̄Γψ, where Γ de...
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We compute the ratio ΛL/ΛMS between the scale parameter ΛL, associated with a lattice formulation of QCD using the overlap-Dirac operator, and ΛMS of the MS renormalization scheme. To this end, the necessary one-loop relation between the lattice coupling g0 and the coupling renormalized in the MS scheme is calculated, using the lattice background field technique.
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 2000
ISSN: 0550-3213
DOI: 10.1016/s0550-3213(00)00190-5