RT Journal Article
T1 Improved limit on the branching fraction of the rare decay K0S→μ+μ−
A1 Aaij, Roel
A1 Adeva Andany, Bernardo
A1 Borsato, Martino
A1 Chobanova, Veronika
A1 Cid Vidal, Xabier
A1 Dosil Suárez, Álvaro
A1 Fernández Prieto, Antonio
A1 Gallas Torreira, Abraham Antonio
A1 García Pardiñas, Julián
A1 Lemos Cid, Edgar
A1 Lucio Martínez, Miriam
A1 Martínez Santos, Diego
A1 Plo Casasus, Máximo
A1 Prisciandaro, Jessica
A1 Ramos Pernas, Miguel
A1 Romero Vidal, Antonio
A1 Saborido Silva, Juan José
A1 Sanmartín Sedes, Brais
A1 Santamarina Ríos, Cibrán
A1 Vázquez Regueiro, Pablo
A1 Vieites Díaz, María
A1 Vázquez Sierra, Carlos
A1 LHCb Collaboration, 
K1 Kaon physics
K1 Flavour physics
K1 Particle physics
K1 Experimental physics
AB A search for the decay K0S→μ+μ−  is performed, based on a data sample of proton-proton collisions corresponding to an integrated luminosity of   3 fb −1 , collected by the LHCb experiment at centre-of-mass energies of 7 and 8  TeV . The observed yield is consistent with the background-only hypothesis, yielding a limit on the branching fraction of  BF(K0S→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
PB Springer
YR 2017
FD 2017-10-13
LK http://hdl.handle.net/10347/16744
UL http://hdl.handle.net/10347/16744
LA eng
NO Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., & Albrecht, J. et al. (2017). Improved limit on the branching fraction of the rare decay K0S→μ+μ−. The European Physical Journal C, 77(10). doi: 10.1140/epjc/s10052-017-5230-x
NO We express our gratitude to our colleagues in theCERN accelerator departments for the excellent performance of theLHC. 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 areprovided 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), IFINHH(Romania), CBPF (Brazil), PL-GRID (Poland) and OSC (USA). We are indebted to the communities behind the multiple open sourcesoftware packages on which we depend. Individual groups or membershave received support from AvH Foundation (Germany), EPLANET,Marie Skłodowska-Curie Actions and ERC (European Union), ConseilGénéral de Haute-Savoie, Labex ENIGMASS and OCEVU, RégionAuvergne (France), RFBR and Yandex LLC (Russia), GVA, XuntaGaland GENCAT (Spain), Herchel Smith Fund, The Royal Society,Royal Commission for the Exhibition of 1851 and the Leverhulme Trust(United Kingdom)
DS Minerva
RD 1 may 2026