@article{9b66ec5bac7a473fbebe430c95d84d65,
title = "The K± → π±π0e+e− decay: First observation and study with the NA48/2 experiment at CERN",
abstract = "The NA48/2 experiment collected data in 2003 and 2004 with the main purpose to study direct CP violation in charged kaons decaying into three pions. Thanks to the huge statistics collected, other studies are also possible. This paper reports the first observation of the K± → π±π0e+e− decay from an exposure of 1.7×1011 charged kaon decays. The Branching Ratio has been determined to be BR(K± → π±π0e+e−) = (4.24 ±0.14) ×10−6, using a sample of 4919 candidates with 4.9% background contamination. Studies of the kinematic space and of several P- and CP-violating asymmetries are also reported.",
author = "{NA48/2 Collaboration} and Giuseppina Anzivino and G. Anzivino and R. Arcidiacono and W. Baldini and S. Balev and Batley, {J. R.} and M. Behler and S. Bifani and C. Biino and A. Bizzeti and B. Bloch-Devaux and G. Bocquet and N. Cabibbo and M. Calvetti and N. Cartiglia and A. Ceccucci and E. Celeghini and P. Cenci and C. Cerri and C. Cheshkov and Ch{\`e}ze, {J. B.} and M. Clemencic and G. Collazuol and F. Costantini and {Cotta Ra-Musino}, A. and D. Coward and D. Cundy and A. Dabrowski and P. Dalpiaz and C. Damiani and {de Beer}, M. and J. Derr{\'e} and H. Dibon and L. DiLella and N. Doble and K. Eppard and V. Falaleev and R. Fantechi and M. Fidecaro and L. Fiorini and M. Fiorini and {Fonseca Martin}, T. and Frabetti, {P. L.} and L. Gatignon and E. Gersabeck and A. Gianoli and S. Giudici and A. Gonidec and E. Goudzovski and M. Velasco",
note = "Publisher Copyright: {\textcopyright} Owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).; 2019 European Physical Society Conference on High Energy Physics, EPS-HEP 2019 ; Conference date: 10-07-2019 Through 17-07-2019",
year = "2019",
language = "English (US)",
volume = "364",
journal = "Proceedings of Science",
issn = "1824-8039",
publisher = "Sissa Medialab Srl",
}