Abstract
An analysis of 9.66 × 106 charged B meson decays which results in a conservative upper limit on the branching fraction B(B → τν) < 8.4 × 10-4. The analysis was slightly modified to establish B(B± → K± νν̄) < 2.4 × 10-4. The method used is optimized for conditions available at Y(4S) experiments, and some application of the method to other rare decay modes with large missing energy was aniticipated.
Original language | English (US) |
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Pages (from-to) | 2950-2954 |
Number of pages | 5 |
Journal | Physical review letters |
Volume | 86 |
Issue number | 14 |
DOIs | |
State | Published - Apr 2 2001 |