Measurement of the B−c meson lifetime in the decay B−c→J/ψπ−

The lifetime of the B−c meson is measured using 272 exclusive B−c→J/ψ(→μ+μ−)π− decays reconstructed in data from proton-antiproton collisions corresponding to an integrated luminosity of 6.7  fb−1 recorded by the CDF II detector at the Fermilab Tevatron. The lifetime of the B−c meson is measured to...

ver descrição completa

Detalhes bibliográficos
Autores: Aaltonen, T., Álvarez González, B., Casal, Bruno, Cuevas, Javier, Gómez, Gervasio, Palencia, Enrique, Rodrigo Anoro, Teresa, Ruiz Jimeno, Alberto, Scodellaro, Luca, Vila, Iván, Vilar Cortabitarte, R., Vizán, J., CDF Collaboration
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2013
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/109332
Acesso em linha:http://hdl.handle.net/10261/109332
Access Level:acceso abierto
Palavra-chave:ddc:500.2
Descrição
Resumo:The lifetime of the B−c meson is measured using 272 exclusive B−c→J/ψ(→μ+μ−)π− decays reconstructed in data from proton-antiproton collisions corresponding to an integrated luminosity of 6.7  fb−1 recorded by the CDF II detector at the Fermilab Tevatron. The lifetime of the B−c meson is measured to be τ(B−c)=0.452±0.048(stat)±0.027(syst)  ps. This is the first measurement of the B−c meson lifetime in a fully reconstructed hadronic channel, and it agrees with previous results and has comparable precision.

Registos relacionados