Based on a series of lattice calculations we determine the ratio F K/Fπ in QCD. With experimental data from kaon decay and nuclear double beta decay, we obtain a precise determination of |V us|. Our simulation includes 2 + 1 flavours of sea quarks, with three lattice spacings, large volumes and a simulated pion mass reaching down to about 190MeV for a full control over the systematic uncertainties.
|Publication status||Published - Dec 1 2011|
|Event||6th International Workshop on the CKM Unitarity Triangle, CKM 2010 - Coventry, United Kingdom|
Duration: Sep 6 2010 → Sep 10 2010
|Other||6th International Workshop on the CKM Unitarity Triangle, CKM 2010|
|Period||9/6/10 → 9/10/10|
ASJC Scopus subject areas
- Mathematics (miscellaneous)