RT Journal Article
T1 Search for Lepton-Flavor Violating Decays B+ --> K+ mu± e∓
A1 LHCb Collaboration, 
A1 R. Aaij, 
A1 Adeva Andany, Bernardo
A1 Alves, António Augusto
A1 Boente García, Óscar
A1 Brea Rodríguez, Alexandre
A1 Casais Vidal, Adrián
A1 Chobanova, Veronika
A1 Cid Vidal, Xabier
A1 Dalseno, Jeremy
A1 Dosil Suárez, Álvaro
A1 Fernández Prieto, Antonio
A1 Gallas Torreira, Abraham
A1 García Plana, Beatriz
A1 Gioventù, Alessandra
A1 Lomba Castro, Julián
A1 Martínez Santos, Diego
A1 Pló Casasús, Máximo
A1 Prouve, Claire
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
K1 Lepton Flavor Violation
K1 Heavy Flavor
K1 LHCb
K1 B mesons
K1 Hadron Colliders
AB A search for the lepton-flavor violating decays 𝐵+ →𝐾+⁢𝜇±⁢𝑒∓ is performed using a sample of proton-proton collision data, collected with the LHCb experiment at center-of-mass energies of 7 and 8 TeV and corresponding to an integrated luminosity of 3  fb−1. No significant signal is observed, and upper limits on the branching fractions are set as ℬ⁡(𝐵+→𝐾+⁢𝜇−⁢𝑒+)<7.0⁢(9.5)×10−9 and ℬ⁡(𝐵+→𝐾+⁢𝜇+⁢𝑒−)<6.4⁢(8.8)×10−9 at 90% (95)% confidence level. The results improve the current best limits on these decays by more than one order of magnitude
PB American Physical Society
YR 2019
FD 2019-12-12
LK https://hdl.handle.net/10347/45298
UL https://hdl.handle.net/10347/45298
LA eng
NO R. Aaij, C. Abellán Beteta, T. Ackernley, B. Adeva, M. Adinolfi, C. A. Aidala, Z. Ajaltouni, S. Akar, P. Albicocco et al. (LHCb Collaboration). Search for Lepton-Flavor Violating Decays 𝐵+→𝐾+⁢𝜇±⁢𝑒∓. Phys. Rev. Lett. 123, 241802 – Published 12 December, 2019
NO 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 (Netherlands); MNiSW and NCN (Poland); MEN/IFA (Romania); MSHE (Russia); MinECo (Spain); SNSF and SER (Switzerland); NASU (Ukraine); STFC (United Kingdom); DOE NP and NSF (USA). We acknowledge the computing resources that are provided by CERN, IN2P3 (France), KIT, and DESY (Germany), INFN (Italy), SURF (Netherlands), PIC (Spain), GridPP (United Kingdom), RRCKI and Yandex LLC (Russia), CSCS (Switzerland), IFIN-HH (Romania), CBPF (Brazil), PL-GRID (Poland) and OSC (USA). 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 Skłodowska-Curie Actions, and ERC (European Union); ANR, Labex P2IO, and OCEVU, and R´egion Auvergne-Rhône-Alpes (France); Key Research Program of Frontier Sciences of CAS, CAS PIFI, and the Thousand Talents Program (China); RFBR, RSF, and Yandex LLC (Russia); GVA, XuntaGal, and GENCAT (Spain); the Royal Society and the Leverhulme Trust (United Kingdom).
DS Minerva
RD 25 may 2026