Clover improvement for stout-smeared 2+1 flavour SLiNC fermions: perturbative results
نویسندگان
چکیده
For the Stout Link Non-perturbative Clover (SLiNC) action we determine in one-loop lattice perturbation theory the critical hopping parameter κc and the clover parameter cSW which is needed for O(a) improvement. Performing this calculation off-shell we are also able to compute the non gauge invariant quark field improvement coefficient cNGI . Additionally, we present first results for the renormalization factors of the scalar, pseudoscalar, vector and axial vector currents. We discuss mean field improvement for the SLiNC action.
منابع مشابه
Non-perturbative improvement of stout-smeared three flavour clover fermions
We discuss a 3-flavour lattice QCD action with clover improvement in which the fermion matrix has single level stout smearing for the hopping terms together with unsmeared links for the clover term. With the (tree-level) Symanzik improved gluon action this constitutes the Stout Link Non-perturbative Clover or SLiNC action. To cancel O(a) terms the clover term coefficient has to be tuned. We pre...
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Institut für Theoretische Physik, Universität Regensburg, 93040 Regensburg, Germany School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom Deutsches Elektronen-Synchrotron DESY, 15738 Zeuthen, Germany Institut für Theoretische Physik, Universität Leipzig, 04109 Leipzig, Germany Theoretical Physics Division, Department of Mathematical Sciences, University of ...
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