RT Journal Article T1 Measurement of the B+c meson lifetime using B+c→J/ψμ+νμX decays A1 LHCb Collaboration, A1 Adeva Andany, Bernardo A1 Álvarez Cartelle, Paula A1 Dosil Suárez, Álvaro A1 Fernández Albor, Víctor Manuel A1 Gallas Torreira, Abraham Antonio A1 Hernando Morata, José Ángel A1 Pazos Álvarez, Antonio A1 Pérez Trigo, Eliseo A1 Plo Casasus, Máximo A1 Rodríguez Pérez, Pablo A1 Romero Vidal, Antonio A1 Saborido Silva, Juan José A1 Sanmartín Sedes, Brais A1 Santamarina Ríos, Cibrán A1 Seco Miguélez, Marcos Antonio A1 Vázquez Regueiro, Pablo A1 Vázquez Sierra, Carlos AB The lifetime of the B+c meson is measured using semileptonic decays having a J/ψ meson and a muon in the final state. The data, corresponding to an integrated luminosity of 2 fb −1, are collected by the LHCb detector in pp collisions at a centre-of-mass energy of 8 TeV. The measured lifetime isτ=509±8±12 fs,where the first uncertainty is statistical and the second is systematic. PB Springer SN 1434-6044 YR 2014 FD 2014 LK http://hdl.handle.net/10347/21640 UL http://hdl.handle.net/10347/21640 LA eng NO Aaij, R., Adeva, B., Adinolfi, M. et al. Measurement of the B+c meson lifetime using B+c→J/ψμ+νμX decays. Eur. Phys. J. C 74, 2839 (2014). https://doi.org/10.1140/epjc/s10052-014-2839-x DS Minerva RD 24 abr 2026