CMS collaboration (2199 authors)Hollar, JonathanNayak, ArunaCalpas, BettyAlmeida, NunoBargassa, PedrameDavid Tinoco Mendes, AndreFaccioli, PietroFerreira Parracho, Pedro GuilhermeGallinaro, MicheleRodrigues Antunes, JoaoSeixas, JoaoVarela, JoaoVischia, PietroLloret Iglesias, LaraMusella, PasqualeSilva, PedroPela, JoaoLeonardo, Nuno2019-02-032019-02-032013-07-02http://dx.doi.org/10.1007/JHEP07(2013)163http://hdl.handle.net/10400.26/26418A measurement of the $\Lambda_b^{0}$ lifetime using the decay $\Lambda_b^{0} \to J/\psi \Lambda$ in proton-proton collisions at $\sqrt{s}$=7 TeV is presented. The data set, corresponding to an integrated luminosity of about 5 inverse femtobarns, was recorded with the CMS experiment at the Large Hadron Collider using triggers that selected dimuon events in the J/$\psi$ mass region. The $\Lambda_b^{0}$ lifetime is measured to be 1.503 +/- 0.052 (stat.) +/- 0.031 (syst.) ps.engjournal article2019-02-03