Evidence for the decay B+c→J/ψ3π+2π−

Evidence is presented for the decay B + c → J/ψ3π +2π − using proton-proton collision data, corresponding to an integrated luminosity of 3 fb−1 , collected with the LHCb detector. A signal yield of 32 ± 8 decays is found with a significance of 4.5 standard deviations. The ratio of the branching frac...

Descripción completa

Detalles Bibliográficos
Autores: LHCb Collaboration, Adeva Andany, Bernardo, Álvarez Cartelle, Paula, Dosil Suárez, Álvaro, Fernández Albor, Víctor Manuel, Gallas Torreira, Abraham Antonio, Hernando Morata, José Ángel, Pazos Álvarez, Antonio, Pérez Trigo, Eliseo, Plo Casasus, Máximo, Romero Vidal, Antonio, Saborido Silva, Juan José, Sanmartín Sedes, Brais, Santamarina Ríos, Cibrán, Seco Miguélez, Marcos Antonio, Vázquez Regueiro, Pablo, Vázquez Sierra, Carlos
Tipo de recurso: artículo
Fecha de publicación:2014
País:España
Institución: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:10347/21632
Acceso en línea:http://hdl.handle.net/10347/21632
Access Level:acceso abierto
Descripción
Sumario:Evidence is presented for the decay B + c → J/ψ3π +2π − using proton-proton collision data, corresponding to an integrated luminosity of 3 fb−1 , collected with the LHCb detector. A signal yield of 32 ± 8 decays is found with a significance of 4.5 standard deviations. The ratio of the branching fraction of the B + c → J/ψ3π +2π − decay to that of the B+ c → J/ψπ+ decay is measured to be B (B+ c → J/ψ3π +2π −) B B + c → J/ψπ+ = 1.74 ± 0.44 ± 0.24, where the first uncertainty is statistical and the second is systematic

Similares en LA Referencia