Perturbative renormalisation of quark bilinear operators for overlap fermions with and without stout links and improved gauge action

Horsley, R, Perlt, H, Rakow, PEL ORCID: 0000-0003-4486-2158, Schierholz, G and Schiller, A (2005) Perturbative renormalisation of quark bilinear operators for overlap fermions with and without stout links and improved gauge action. In: XXIIIrd International Symposium on Lattice Field Theory, 2005-7-25 - 2005-7-30, Trinity College, Dublin, Ireland.

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Abstract

We calculate lattice renormalisation constants of local and one-link quark operators for overlap fermions and improved gauge actions in one-loop perturbation theory. For the local operators we stout smear the SU(3) links in the fermionic action. Using the popular tadpole improved L\"uscher-Weisz actions at $\beta=8.45$ and $\beta=8.0$ we present numerical values for the Z factors in the $\bar{MS}$ scheme (partly as function of the stout smearing strength). We compare various levels of mean field (tadpole) improvement which have been applied to our results.

Item Type:	Conference or Workshop Item (Paper)
Additional Information:	7 pages
Uncontrolled Keywords:	hep-lat, hep-lat
Subjects:	?? QC ??
Divisions:	Faculty of Science and Engineering > School of Physical Sciences > Mathematical Sciences
Depositing User:	Symplectic Admin
Date Deposited:	18 Aug 2008 11:06
Last Modified:	17 Dec 2022 00:50
DOI:	10.22323/1.020.0238
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URI:	https://livrepository.liverpool.ac.uk/id/eprint/405