Abstract
Using data accumulated by the CLEO I detector operating at the Cornell Electron Storage Ring, we have measured the ratio R=( e» e ) 1 where " 1 is the decay rate to final states with one charged particle. We find R=0.2231 0.0044 0.0073 where the first error is statistical and the second is systematic. Together with the measured topological one-charged-particle branching fraction, this yields the branching fraction of the lepton to electrons, Be=0.192 0.004 0.006.
Original language | English (US) |
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Pages (from-to) | 3976-3985 |
Number of pages | 10 |
Journal | Physical Review D |
Volume | 45 |
Issue number | 11 |
DOIs | |
State | Published - 1992 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics