Perturbative determination of cSW for plaquette and Symanzik gauge action and stout link clover fermions
نویسندگان
چکیده
Using plaquette and Symanzik improved gauge action and stout link clover fermions we determine the improvement coefficient cSW in one-loop lattice perturbation theory from the off-shell quark-quark-gluon three-point function. In addition, we compute the coefficients needed for the most general form of quark field improvement and present the one-loop result for the critical hopping parameter κc. We discuss mean field improvement for cSW and κc and the choice of the mean field coupling for the actions we have considered.
منابع مشابه
Perturbative determination of cSW with Symanzik improved gauge action and stout smearing
We determine the improvement factor cSW in one-loop lattice perturbation theory for the plaquette and Symanzik improved gauge actions. The fermionic action is O(a) clover improved with onetime stout smearing. cSW is derived from the one-loop correction to the quark-quark-gluon vertex in the off-shell regime. We give a first numerical value for the one-loop contribution to the non gauge-invarian...
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