FK/Fπ from the Budapest-Marseille-Wuppertal collaboration

A. Ramos, S. Dürr, Z. Fodor, C. Hoelbling, S. D. Katz, S. Krieg, T. Kurth, L. Lellouch, T. Lippert, K. K. Szabó

Research output: Contribution to conferencePaper

Abstract

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.

Original languageEnglish
Publication statusPublished - Dec 1 2011
Event6th International Workshop on the CKM Unitarity Triangle, CKM 2010 - Coventry, United Kingdom
Duration: Sep 6 2010Sep 10 2010

Other

Other6th International Workshop on the CKM Unitarity Triangle, CKM 2010
CountryUnited Kingdom
CityCoventry
Period9/6/109/10/10

ASJC Scopus subject areas

  • Mathematics (miscellaneous)

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    Ramos, A., Dürr, S., Fodor, Z., Hoelbling, C., Katz, S. D., Krieg, S., Kurth, T., Lellouch, L., Lippert, T., & Szabó, K. K. (2011). FK/Fπ from the Budapest-Marseille-Wuppertal collaboration. Paper presented at 6th International Workshop on the CKM Unitarity Triangle, CKM 2010, Coventry, United Kingdom.