We report the first observation of B0?X(3872)(K+p-) and evidence for B+?X(3872)(K0p+). We measure the product of branching fractions for the former to be B(B0?X(3872)(K+p-))×B(X(3872)?J/?p+p-)=(7.9±1.3(stat.)±0.4(syst.))×10-6 and find that B0?X(3872)K*(892)0 does not dominate the B0?X(3872)K+p- decay mode. We also measure B(B+?X(3872)(K0p+))×B(X(3872)?J/?p+p-)=(10.6±3.0(stat.)±0.9(syst.))×10-6. This study is based on the full data sample of 711~fb-1 (772×106BB¯ pairs) collected at the ?(4S) resonance with the Belle detector at the KEKB collider.
Revised: January 21, 2020 |
Published: March 1, 2015
Citation
Bala A., V. Bhardwaj, K. Trabelsi, J.B. Singh, A. Abdesselam, I. Adachi, and H. Aihara, et al. 2015.Observation of X(3872) in B ? X(3872)Kp decays.Physical Review D 91, no. 5:051101.PNNL-SA-108151.doi:10.1103/PhysRevD.91.051101