2026-04-13T02:42:50Zhttps://recercat.cat/oai/request
oai:recercat.cat:2445/1864132025-12-05T16:53:44Zcom_2072_1057col_2072_478823col_2072_478917
RECERCAT author Badalov, Alexey 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 2022-06-07T14:09:00Z2022-06-07T14:09:00Z2015-12-072022-06-07T14:09:00Z A search for the rare decay of a B0 or B0 s meson into the final state J/ψ γ is performed, using data collected by the LHCb experiment in pp collisions at √ s = 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb−1 . The observed number of signal candidates is consistent with a background-only hypothesis. Branching fraction values larger than 1.5 × 10−6 for the B0 → J/ψ γ decay mode are excluded at 90% confidence level. For the B0 s → J/ψ γ decay mode, branching fraction values larger than 7.3 × 10−6 are excluded at 90% confidence level; this is the first branching fraction limit for this decay (c) American Physical Society, 2015 info:eu-repo/semantics/openAccess Hadrons Gran Col·lisionador d'Hadrons Física de partícules Experiments Hadrons Large Hadron Collider (France and Switzerland) Particle physics Experiments Search for the rare decays B0→J /ψ γ and Bs0→J /ψ γ info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion