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@INPROCEEDINGS{Costantini:291650,
      author       = {Costantini, Flavio},
      collaboration = {NA48/{2 Collaboration} and NA62-{RK Collaboration}},
      title        = {{C}hiral {P}erturbation {T}heory tests at {NA}48 and
                      {NA}62-$\mathbf{{R}_{K}}$ experiments at {CERN}},
      address      = {Hamburg},
      publisher    = {Deutsches Elektronen-Synchrotron, DESY},
      reportid     = {PUBDB-2015-05508, DESY-PROC-2014-04},
      pages        = {619-623},
      year         = {2014},
      abstract     = {Final results from an analysis of about 400
                      $K^\pm\to\pi^\pm\gamma\gamma$ rare decay candidates
                      collected by the NA48/2 and NA62-$R_K$ experiments at CERN
                      during low intensity runs with minimum bias trigger
                      configurations are presented. The results include a
                      model-independent decay rate measurement and fits to Chiral
                      Perturbation Theory (ChPT) description. The data support the
                      ChPT prediction for a cusp in the di-photon invariant mass
                      spectrum at the two pion threshold.},
      month         = {Aug},
      date          = {2014-08-25},
      organization  = {Panic2014, Hamburg (Germany), 25 Aug
                       2014 - 29 Aug 2014},
      keywords     = {talk: Hamburg 2014/08/24 (INSPIRE) / perturbation theory:
                      chiral (INSPIRE) / threshold: two-pion (INSPIRE) / CERN Lab
                      (INSPIRE) / NA48 (INSPIRE) / NA62 (INSPIRE) / mass spectrum
                      (INSPIRE) / decay rate (INSPIRE) / mass spectrum: two-photon
                      (INSPIRE) / K: rare decay (INSPIRE) / K: radiative decay
                      (INSPIRE) / trigger (INSPIRE) / experimental results
                      (INSPIRE) / K+ --> pi+ 2photon (INSPIRE) / K- --> pi-
                      2photon (INSPIRE)},
      cin          = {ATLAS / CMS / UNI/EXP},
      cid          = {I:(DE-H253)ATLAS-20120731 / I:(DE-H253)CMS-20120731 /
                      $I:(DE-H253)UNI_EXP-20120731$},
      pnm          = {611 - Fundamental Particles and Forces (POF3-611)},
      pid          = {G:(DE-HGF)POF3-611},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)29 / PUB:(DE-HGF)8},
      doi          = {10.3204/DESY-PROC-2014-04/16},
      url          = {https://bib-pubdb1.desy.de/record/291650},
}