@article{e0eb99fad17d42fd91e40d58bfca5fe0,
title = "Improved limit on the branching fraction of the rare decay K0 s→μ+ μ- ",
abstract = "A search for the decay KS0→μ+μ- is performed, based on a data sample of proton-proton collisions corresponding to an integrated luminosity of 3fb-1, collected by the LHCb experiment at centre-of-mass energies of 7 and 8TeV. The observed yield is consistent with the background-only hypothesis, yielding a limit on the branching fraction of B(KS0→μ+μ-)<0.8(1.0)×10-9 at 90%(95%) confidence level. This result improves the previous upper limit on the branching fraction by an order of magnitude.",
author = "{LHCb Collaboration} and R. Aaij and B. Adeva and M. Adinolfi and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and M. Alexander and S. Ali and G. Alkhazov and {Alvarez Cartelle}, P. and Alves, {A. A.} and S. Amato and S. Amerio and Y. Amhis and L. An and L. Anderlini and G. Andreassi and M. Andreotti and Andrews, {J. E.} and Appleby, {R. B.} and F. Archilli and P. d{\textquoteright}Argent and {Arnau Romeu}, J. and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and M. Baalouch and I. Babuschkin and S. Bachmann and Back, {J. J.} and A. Badalov and C. Baesso and S. Baker and V. Balagura and W. Baldini and A. Baranov and Barlow, {R. J.} and C. Barschel and S. Barsuk and W. Barter and F. Baryshnikov and M. Baszczyk and V. Batozskaya and V. Battista and A. Bay and L. Beaucourt and {Calvo Gomez}, M. and X. Vilasis-Cardona",
note = "Funding Information: Acknowledgements We express our gratitude to our colleagues in the CERN accelerator departments for the excellent performance of the LHC. We thank the technical and administrative staff at the LHCb institutes. We acknowledge support from CERN and from the national agencies: CAPES, CNPq, FAPERJ and FINEP (Brazil); MOST and NSFC (China); CNRS/IN2P3 (France); BMBF, DFG and MPG (Germany); INFN (Italy); NWO (The Netherlands); MNiSW and NCN (Poland); MEN/IFA (Romania); MinES and FASO (Russia); MinECo (Spain); SNSF and SER (Switzerland); NASU (Ukraine); STFC (United Kingdom); NSF (USA). We acknowledge the computing resources that are provided by CERN, IN2P3 (France), KIT and DESY (Germany), INFN (Italy), SURF (The Netherlands), PIC (Spain), GridPP (United Kingdom), RRCKI and Yandex LLC (Russia), CSCS (Switzerland), IFIN-HH (Romania), CBPF (Brazil), PL-GRID (Poland) and OSC (USA). Funding Information: We are indebted to the communities behind the multiple open source software packages on which we depend. Individual groups or members have received support from AvH Foundation (Germany), EPLANET, Marie Sk{\l}odowska-Curie Actions and ERC (European Union), Conseil G{\'e}n{\'e}ral de Haute-Savoie, Labex ENIGMASS and OCEVU, R{\'e}gion Auvergne (France), RFBR and Yandex LLC (Russia), GVA, Xunta-Gal and GENCAT (Spain), Herchel Smith Fund, The Royal Society, Royal Commission for the Exhibition of 1851 and the Leverhulme Trust (United Kingdom). Publisher Copyright: {\textcopyright} 2017, CERN for the benefit of the LHCb collaboration.",
year = "2017",
month = oct,
day = "1",
doi = "10.1140/epjc/s10052-017-5230-x",
language = "English",
volume = "77",
journal = "European Physical Journal C",
issn = "1434-6044",
publisher = "Springer Nature",
number = "10",
}