Author:
Herdoíza Gregorio,Pena Carlos,Preti David,Romero José Ángel,Ugarrio Javier
Abstract
We discuss a mixed-action approach in which sea quarks are regularised using non-perturbatively O(a) improved Wilson fermions, while a fully-twisted tmQCD action is used for valence quarks. In this setup, automatic O(a) improvement is preserved for valence observables, apart from small residual O(a) effects from the sea. A strategy for matching sea and valence is set up, and carried out for Nf = 2 + 1 CLS ensembles with open boundary conditions at several simulation points. The scaling of basic light-quark observables such as the pseudoscalar meson decay constant is studied, as well as the isospin splitting of pseudoscalar meson masses.
Reference30 articles.
1. Cabibbo N., Leptonic Decays in the Unitary Symmetry Scheme, in Proceedings, International Conference on Fundamental Aspects of Weak Interactions: Brookhaven National Laboratory, Upton, NY, September 9-11, 1963 (1964), pp. 299-302, http://inspirehep.net/record/13775S5/files/Cabibbo-p299.pdf
2. CP-Violation in the Renormalizable Theory of Weak Interaction
3. Simulation of QCD with N f = 2 + 1 flavors of non-perturbatively improved Wilson fermions
4. Properties and uses of the Wilson flow in lattice QCD
5. Lattice QCD without topology barriers
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