18-24 June 2017
Palacio de Congresos
Europe/Madrid timezone
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Contribution Parallel

Seminarios 6+7
Weak Decays and Matrix Elements

Setting up a tmQCD valence action for flavour physics


  • Mr. Jose Angel ROMERO JURADO

Primary authors



We discuss a mixed-action approach in which sea quarks are regularized using non-perturbatively $O(a)$ improved Wilson fermions, while an $N_f=2+1+1$ 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. An optimal strategy for matching sea and valence is set up, and carried out for $N_f=2+1$ CLS ensembles with open boundary conditions at several simulation points.

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Weak Decays and Matrix Elements