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

A. Vladikas; F. Mescia; G.C. Rossi; P. Dimopoulos; R. Frezzotti; S. Simula; V. Gimenez; V. Lubicz

arxiv: 0810.2443 · v1 · pith:3MC27TZF · submitted 2008-10-14 · hep-lat

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

P. Dimopoulos , R. Frezzotti , V. Gimenez , V. Lubicz , F. Mescia , G.C. Rossi , S. Simula , A. Vladikas This is my paper

Reviewed by Pith T0 review T1 audit T2 compute T3 formal T4 kernel pith:3MC27TZF record.json open to challenge →

classification hep-lat

keywords constantsdecayk-mesonmaximallytensortwistedvectorb-parameter

0 comments

read the original 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.

This paper has not been read by Pith yet.

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

discussion (0)