Perturbative determination of $c_{SW}$ with Symanzik improved gauge action and stout smearing
Abstract
We determine the improvement factor $c_{SW}$ in oneloop lattice perturbation theory for the plaquette and Symanzik improved gauge actions. The fermionic action is ${\mathcal{O}(a)}$ clover improved with onetime stout smearing. $c_{SW}$ is derived from the oneloop correction to the quarkquarkgluon vertex in the offshell regime. We give a first numerical value for the oneloop contribution to the non gaugeinvariant improvement coefficient $c_{NGI}$ for the quark field using the plaquette action. A discussion of mean field improvement is included.
 Publication:

arXiv eprints
 Pub Date:
 October 2007
 arXiv:
 arXiv:0710.0990
 Bibcode:
 2007arXiv0710.0990H
 Keywords:

 High Energy Physics  Lattice
 EPrint:
 7 pages, 1 figure, contribution to Lattice 2007