We have searched for the decay (Formula presented) and measured an upper limit for the inclusive branching fraction of (Formula presented) at the 90% confidence level. This limit is small compared with the total expected (Formula presented) rate. Assuming factorization, the (Formula presented) decay constant is constrained to be (Formula presented)<114 MeV at the 90% confidence level, at least 2.5 times smaller than that of (Formula presented).
|Original language||English (US)|
|Number of pages||7|
|Journal||Physical Review D - Particles, Fields, Gravitation and Cosmology|
|State||Published - Jan 1 1998|
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)