We report a search for the rare decays B→h(*) νν̄, where h(z.ast;) stands for K+, KS0, K*+, K*0, π+, π0, ρ+, ρ0 and p. The results are obtained from a 711 fb-1 data sample that contains 772×106BB̄ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB e+e- collider. We search for signal candidates by fully reconstructing a hadronic decay of the accompanying B meson and requiring a single h(*) meson left on the signal side. No significant signal is observed and we set upper limits on the branching fractions at 90% confidence level. The measurements of B+→K *+νν̄, B+→π +νν̄, B0→π0νν̄ and B0→ρ0ν ν̄ provide the world's currently most restrictive limits.
|Journal||Physical Review D - Particles, Fields, Gravitation and Cosmology|
|Publication status||Published - 2013 Jun 27|
Bibliographical noteFunding Information:
From the Division of Dermatology, University of British Columbia. Support given to Dr. Ho in part by the R. S. McLaughlin Foundation, the British Columbia Health Care Research Foundation and Der-matology Foundation from Canada, and the Dermatology Founda-tion, Evanston, II1. Reprint requests: Vincent C. Ho, MD, 855 West 10th Ave., Vancou-ver, BC, Canada VSZ IL7, 16/0/23795
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)