Regular Article - Theoretical Physics

The European Physical Journal C

, Volume 69, Issue 3, pp 399-424

First online:

An evaluation of |V us | and precise tests of the Standard Model from world data on leptonic and semileptonic kaon decays

  • M. AntonelliAffiliated withLaboratori Nazionali di Frascati dell’INFN
  • , V. CiriglianoAffiliated withTheoretical Division, Los Alamos National Laboratory
  • , G. IsidoriAffiliated withLaboratori Nazionali di Frascati dell’INFN
  • , F. MesciaAffiliated withDep. ECM and ICC, Universitat de Barcelona
  • , M. MoulsonAffiliated withLaboratori Nazionali di Frascati dell’INFN Email author 
  • , H. NeufeldAffiliated withFakultät für Physik, Universität Wien
  • , E. PassemarAffiliated withDepartament de Física Teòrica, IFIC, Universitat de València—CSIC
  • , M. PalutanAffiliated withLaboratori Nazionali di Frascati dell’INFN
  • , B. SciasciaAffiliated withLaboratori Nazionali di Frascati dell’INFN
    • , M. SozziAffiliated withDipartimento di Fisica, Università di Pisa e Sezione dell’INFN di Pisa
    • , R. WankeAffiliated withInstitut für Physik, Universität Mainz
    • , O. P. YushchenkoAffiliated withInstitute for High Energy Physics

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Abstract

We present a global analysis of leptonic and semileptonic kaon decay data, including all recent results published by the BNL-E865, KLOE, KTeV, ISTRA+ and NA48 experiments. This analysis, in conjunction with precise lattice calculations of the hadronic matrix elements now available, leads to a very precise determination of |V us | and allows us to perform several stringent tests of the Standard Model.