Speaker
Dr
Piotr Korcyl
(University of Regensburg)
Description
We determine quark mass dependent order a improvement terms of the form am for non-singlet scalar, pseudoscalar, vector and axialvector currents, using correlators in coordinate space. We use a set of CLS ensembles comprising non-perturbatively improved Wilson Fermions and the tree-level Luescher-Weisz gauge action at and , corresponding to lattice spacings a in [0.05,0.09] fm. We report the values of the improvement coefficients which are proportional to non-singlet quark mass combinations and also discuss the possibility of determining the coefficients which are proportional to the trace of the quark mass matrix.
Author
Dr
Piotr Korcyl
(University of Regensburg)
Co-author
Prof.
Gunnar Bali
(University of Regensburg)