Observation of the decay $B^0\to J/\psi \omega$ at Belle II

Belle II Collaboration, I. Adachi, L. Aggarwal +383

We measure the branching fraction of the decay $B^0\to J/\psi \omega$ using data collected with the Belle II detector at the SuperKEKB collider. The data contain $(387\pm 6)\times 10^6$…