Nonperturbative determination of improvement coefficients using coordinate space correlators in Nf=2+1 lattice QCD

URN to cite this document:: urn:nbn:de:bvb:355-epub-388094
DOI to cite this document:: 10.5283/epub.38809

Korcyl, Piotr ; Bali, Gunnar S.

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Date of publication of this fulltext: 20 Mar 2019 12:51

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Abstract

We determine quark mass dependent order a improvement terms of the form b(j)am for nonsinglet scalar, pseudoscalar, vector and axialvector currents using correlators in coordinate space on a set of Coordinated Lattice Simulations ensembles. These have been generated employing nonperturbatively improved Wilson fermions and the tree-level Luher-Weisz gauge action at beta = 3.4, 3.46, 3.55 and 3.7, ...