Journal article
Search forB →J/ψη′K andB0→J/ψη′KS0decays
QL Xie, K Abe, I Adachi, H Aihara, D Anipko, K Arinstein, V Aulchenko, T Aushev, T Aziz, S Bahinipati, AM Bakich, V Balagura, E Barberio, M Barbero, A Bay, I Bedny, K Belous, U Bitenc, I Bizjak, S Blyth Show all
Physical Review D | American Physical Society (APS) | Published : 2007
Abstract
We report the results of searches for B+→J/ψη′K+ and B0→J/ψη′KS0 decays, using a sample of 388×106 BB¯ pairs collected with the Belle detector at the Υ(4S) resonance. No statistically significant signal is found for either of the two decay modes and upper limits for the branching fractions are determined to be B(B+→J/ψη′K+)<8.8×10-5 and B(B0→J/ψη′KS0)<2.5×10-5 at 90% confidence level.