RT Journal Article T1 First study of the CP-violating phase and decay-width difference in B0s→ψ(2S)φ decays A1 LHCb Collaboration, A1 Adeva Andany, Bernardo A1 Borsato, Martino A1 Chobanova, Veronika A1 Cid Vidal, Xabier A1 Dosil Suárez, Álvaro A1 Fernández Albor, Víctor Manuel A1 Fernández Prieto, Antonio A1 Gallas Torreira, Abraham Antonio A1 García Pardiñas, Julián A1 Hernando Morata, José Ángel A1 Lemos Cid, Edgar A1 Lucio Martínez, Miriam A1 Martínez Santos, Diego A1 Plo Casasus, Máximo A1 Prisciandaro, Jessica A1 Ramos Pernas, Miguel A1 Romero Vidal, Antonio A1 Saborido Silva, Juan José A1 Sanmartín Sedes, Brais A1 Santamarina Ríos, Cibrán A1 Vázquez Regueiro, Pablo A1 Vieites Díaz, María A1 Vázquez Sierra, Carlos AB A time-dependent angular analysis of B0s→ψ(2S)φdecays is performed using data recorded by the LHCb experiment. The data set corresponds to an integrated luminosity of 3.0 fb−1collected during Run1 of the LHC. The CP-violating phase and decay-width difference of the B0ssystem are measured to be φs=0.23+0.29−0.28±0.02 radand s=0.066+0.041−0.044±0.007 ps−1, respectively, where the first uncertainty is statistical and the second systematic. This is the first time that φsand shave been measured in a decay containing the ψ(2S)resonance. PB Elsevier SN 0370-2693 YR 2016 FD 2016 LK http://hdl.handle.net/10347/22433 UL http://hdl.handle.net/10347/22433 LA eng NO Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., ... & Cartelle, P. A. (2016). First study of the CP-violating phase and decay-width difference in Bs0→ ψ (2S) ϕ decays. Physics Letters B, 762, 253-262 DS Minerva RD 22 abr 2026