2026-04-13T13:09:57Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1858142025-12-05T16:48:58Zcom_2072_1057col_2072_478823col_2072_478917

00925njm 22002777a 4500 dc Badalov, A. author Garrido Beltrán, Lluís author Gascón Fora, David author Graciani Diaz, Ricardo author Graugés Pous, Eugeni author Marin Benito, Carla author Picatoste Olloqui, Eduardo author Rives Molina, Vicente José author LHCb collaboration author 2022-05-19T14:26:38Z 2022-05-19T14:26:38Z 2015-11-12 2022-05-19T14:26:38Z The first measurement of CP asymmetries in the decay B0 s → J/ψ K∗ (892)0 and an updated measurement of its branching fraction and polarisation fractions are presented. The results are obtained using data corresponding to an integrated luminosity of 3.0 fb−1 of proton-proton collisions recorded with the LHCb detector at centre-of-mass energies of 7 and 8 TeV. Together with constraints from B0 → J/ψ ρ0 , the results are used to constrain additional contributions due to penguin diagrams in the CP-violating phase φs, measured through B0 s decays to charmonium. Hadrons Gran Col·lisionador d'Hadrons Física de partícules Experiments Hadrons Large Hadron Collider (France and Switzerland) Particle physics Experiments Measurement of CP violation parameters and polarisation fractions in B-s(0) -> J/psi(K)over-bar*(0) decays