We present a search for the rare leptonic decays B+ ! e+? and B+ ! µ+?, using the full *(4S) data sample of 772 × 106 B ¯B pairs collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. One of the B mesons from the *(4S) ! B ¯B decay is fully reconstructed in a hadronic mode while the recoiling side is analyzed for the signal decay. We find no evidence of a signal in any of the decay modes. Upper limits of the corresponding branching fractions are determined as B(B+ ! e+?)
Revised: March 24, 2016 |
Published: March 1, 2015
Citation
Yook Y., Y.J. Kwon, A. Abdesselam, I. Adachi, S. Al Said, K. Arinstein, and D.M. Asner, et al. 2015.Search for B+ -> e+ve and B+ ->µ+?µ Decays Using Hadronic Tagging.Physical Review D 91, no. 5:Article No. 052016.PNNL-SA-104299.doi:10.1103/PhysRevD.91.052016