The first observation of the decay B 0 s → χc1φ and a study of B 0 → χc1,2K *0 decays are presented. The analysis is performed using a dataset, corresponding to an integrated luminosity of 1.0 fb -1, collected by the LHCb experiment in pp collisions at a centre-of-mass energy of 7 TeV. The following ratios of branching fractions are measured: Where the third uncertainty is due to the limited knowledge of the branching fractions of χc → J/ψγ modes.
All Science Journal Classification (ASJC) codes
- Física nuclear y de alta energía