TY  - CONF
AU  - Cenci, Patrizia
TI  - Detailed study of the K<sub>e4</sub> decay mode properties from the NA48/2 experiment at CERN
IS  - DESY-PROC-2014-04
CY  - Hamburg
PB  - Deutsches Elektronen-Synchrotron, DESY
M1  - PUBDB-2015-05377
M1  - DESY-PROC-2014-04
SP  - 624-527
PY  - 2014
AB  - 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.
T2  - Panic2014
CY  - 25 Aug 2014 - 29 Aug 2014, Hamburg (Germany)
Y2  - 25 Aug 2014 - 29 Aug 2014
M2  - Hamburg, Germany
KW  - perturbation theory: chiral (autogen)
KW  - energy: low (autogen)
KW  - NA48 (autogen)
KW  - decay modes (autogen)
KW  - CERN Lab (autogen)
KW  - quantum chromodynamics (autogen)
KW  - lattice field theory (autogen)
KW  - branching ratio (autogen)
KW  - form factor (autogen)
KW  - statistics (autogen)
KW  - background (autogen)
LB  - PUB:(DE-HGF)8 ; PUB:(DE-HGF)15
DO  - DOI:10.3204/DESY-PROC-2014-04/17
UR  - https://bib-pubdb1.desy.de/record/291405
ER  -