LHCb CollaborationAdeva Andany, BernardoÁlvarez Cartelle, PaulaDosil Suárez, ÁlvaroFernández Albor, Víctor ManuelGallas Torreira, Abraham AntonioHernando Morata, José ÁngelPazos Álvarez, AntonioPérez Trigo, EliseoPlo Casasus, MáximoRomero Vidal, AntonioSaborido Silva, Juan JoséSanmartín Sedes, BraisSantamarina Ríos, CibránSeco Miguélez, Marcos AntonioVázquez Regueiro, PabloVázquez Sierra, CarlosVieites Díaz, María2020-05-062020-05-062014LHCb Collaboration et al. (2014). Measurement of the CP-violating phase φsin B0s→J/ψπ+π−decays. Phys. Lett. B, 736, 186-1950370-2693http://hdl.handle.net/10347/22072The mixing-induced CP-violating phase φsin B0sand B0sdecays is measured using the J/ψπ+π−final state in data, taken from 3fb−1of integrated luminosity, collected with the LHCb detector in 7 and 8TeV centre-of-mass ppcollisions at the LHC. A time-dependent flavour-tagged amplitude analysis, allowing for direct CPviolation, yields a value for the phase φs=70 ±68 ±8mrad. This result is consistent with the Standard Model expectation and previous measurements.eng© 2014 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/3.0/). Funded by SCOAP3.http://creativecommons.org/licenses/by/3.0/journal article10.1016/j.physletb.2014.06.0791873-2445open access