Search for the lepton flavour violating decay τ− → μ−μ+μ−

A search for the lepton flavour violating decay τ−→μ−μ+μ− is performed with the LHCb experiment. The data sample corresponds to an integrated luminosity of 1.0fb−1 of proton-proton collisions at a centre-of-mass energy of 7TeV and 2.0fb−1 at 8TeV. No evidence is found for a signal, and a limit is se...

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Detalles Bibliográficos
Autores: Gascón Fora, David, Graciani Díaz, Ricardo, Graugés Pous, Eugeni, Picatoste Olloqui, Eduardo, Rives Molina, Vicente José, Ruiz, Hugo (Ruiz Pérez), LHCb Collaboration
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2015
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/69287
Acceso en línea:https://hdl.handle.net/2445/69287
Access Level:acceso abierto
Palabra clave:Acceleradors de partícules
Leptons (Física nuclear)
Violació CP (Física nuclear)
Particle accelerators
Leptons (Nuclear physics)
CP violation (Nuclear physics)
Descripción
Sumario:A search for the lepton flavour violating decay τ−→μ−μ+μ− is performed with the LHCb experiment. The data sample corresponds to an integrated luminosity of 1.0fb−1 of proton-proton collisions at a centre-of-mass energy of 7TeV and 2.0fb−1 at 8TeV. No evidence is found for a signal, and a limit is set at 90% confidence level on the branching fraction, B(τ−→μ−μ+μ−)<4.6×10−8.