Search for Lepton-Flavor Violating Decays B+ --> K+ mu± e∓

A search for the lepton-flavor violating decays + →+⁢±⁢∓ 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 li...

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Detalhes bibliográficos
Autores: LHCb Collaboration, R. Aaij, Adeva Andany, Bernardo, Alves, António Augusto, Boente García, Óscar, Brea Rodríguez, Alexandre, Casais Vidal, Adrián, Chobanova, Veronika, Cid Vidal, Xabier, Dalseno, Jeremy, Dosil Suárez, Álvaro, Fernández Prieto, Antonio, Gallas Torreira, Abraham, García Plana, Beatriz, Gioventù, Alessandra, Lomba Castro, Julián, Martínez Santos, Diego, Pló Casasús, Máximo, Prouve, Claire, Ramos Pernas, Miguel, Romero Vidal, Antonio, Saborido Silva, Juan José, Sanmartín Sedes, Brais, Santamarina Ríos, Cibrán, Vázquez Regueiro, Pablo
Formato: artículo
Fecha de publicación:2019
País:España
Recursos:Universidad de Santiago de Compostela (USC)
Repositorio:Minerva. Repositorio Institucional de la Universidad de Santiago de Compostela
Idioma:inglés
OAI Identifier:oai:minerva.usc.gal:10347/45298
Acesso em linha:https://hdl.handle.net/10347/45298
Access Level:acceso abierto
Palavra-chave:Lepton Flavor Violation
Heavy Flavor
LHCb
B mesons
Hadron Colliders
2290 Física altas energías
Descrição
Resumo:A search for the lepton-flavor violating decays + →+⁢±⁢∓ 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⁡(+→+⁢−⁢+)<7.0⁢(9.5)×10−9 and ℬ⁡(+→+⁢+⁢−)<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

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