%0 Conference Paper
%A Cenci, Patrizia
%T Detailed study of the K<sub>e4</sub> decay mode properties from the NA48/2 experiment at CERN
%N DESY-PROC-2014-04
%C Hamburg
%I Deutsches Elektronen-Synchrotron, DESY
%M PUBDB-2015-05377
%M DESY-PROC-2014-04
%P 624-527
%D 2014
%X The NA48/2 Collaboration at CERN has accumulated an unprecedented statistics of rare semileptonic four-body K<sub>e4</sub> decay modes K<sup>±</sup>→π<sup>+</sup>π<sup>−</sup>eν and K<sup>±</sup>→π<sup>0</sup>π<sup>0</sup>eν, with nearly 1% background contamination. Final results from the analyses of the full K<sub>e4</sub> data samples are described. The most accurate measurements to date of form factors and branching ratios have been achieved by NA48/2, bringing new inputs to low energy QCD description and stringent tests of predictions from Chiral Perturbation Theory and Lattice QCD.
%B Panic2014
%C 25 Aug 2014 - 29 Aug 2014, Hamburg (Germany)
Y2 25 Aug 2014 - 29 Aug 2014
M2 Hamburg, Germany
%K perturbation theory: chiral (autogen)
%K energy: low (autogen)
%K NA48 (autogen)
%K decay modes (autogen)
%K CERN Lab (autogen)
%K quantum chromodynamics (autogen)
%K lattice field theory (autogen)
%K branching ratio (autogen)
%K form factor (autogen)
%K statistics (autogen)
%K background (autogen)
%F PUB:(DE-HGF)8 ; PUB:(DE-HGF)15
%9 Contribution to a conference proceedingsInternal Report
%R 10.3204/DESY-PROC-2014-04/17
%U https://bib-pubdb1.desy.de/record/291405