We present work in progress on the computation of the K-meson vector and tensor decay constants, as well as the B-parameter in Kaon oscillations. Our simulations are performed in a partially quenched setup, with two dynamical (sea) Wilson quark flavours, having a maximally twisted mass term. Valence quarks are either of the standard or the Osterwalder-Seiler maximally twisted variety. These two regularizations can be suitably combined in order to obtain a BK parameter which is both multiplicatively renormalizable and O(a) improved.

Dimopoulos P, Frezzotti R, Rossi G C, Gimenez V, Lubicz V, Mescia F, et al. (2008). K-meson vector and tensor decay constants and BK-parameter from Nf = 2 tmQCD. In Proceedings of the 26th International Symposium on Lattice Field Theory, Lattice 2008 (pp.271).

K-meson vector and tensor decay constants and BK-parameter from Nf = 2 tmQCD

LUBICZ, Vittorio;
2008

Abstract

We present work in progress on the computation of the K-meson vector and tensor decay constants, as well as the B-parameter in Kaon oscillations. Our simulations are performed in a partially quenched setup, with two dynamical (sea) Wilson quark flavours, having a maximally twisted mass term. Valence quarks are either of the standard or the Osterwalder-Seiler maximally twisted variety. These two regularizations can be suitably combined in order to obtain a BK parameter which is both multiplicatively renormalizable and O(a) improved.
Dimopoulos P, Frezzotti R, Rossi G C, Gimenez V, Lubicz V, Mescia F, et al. (2008). K-meson vector and tensor decay constants and BK-parameter from Nf = 2 tmQCD. In Proceedings of the 26th International Symposium on Lattice Field Theory, Lattice 2008 (pp.271).
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11590/161044
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