LHCb CollaborationAdeva Andany, BernardoÁlvarez Cartelle, PaulaDosil Suárez, ÁlvaroFernández Albor, Víctor ManuelGallas Torreira, Abraham AntonioHernando Morata, José ÁngelPazos Álvarez, AntonioPérez Trigo, EliseoPlo Casasus, MáximoRodríguez Pérez, PabloRomero Vidal, AntonioSaborido Silva, Juan JoséSanmartín Sedes, BraisSantamarina Ríos, CibránSeco Miguélez, Marcos AntonioVázquez Regueiro, PabloVázquez Sierra, Carlos2020-04-222020-04-222014Aaij, 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-x1434-6044http://hdl.handle.net/10347/21640The 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 is τ=509±8±12 fs, where the first uncertainty is statistical and the second is systematic.eng© CERN for the benefit of the LHCb collaboration 2014. This article is published with open access at Springerlink.com. This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. Funded by SCOAP3 / License Version CC BY 4.0.https://creativecommons.org/licenses/by/4.0/journal article10.1140/epjc/s10052-014-2839-x1434-6052open access