Using (Formula presented) of (Formula presented) data recorded with the CLEO II and CLEO II.V detector configurations at CESR, we have searched for (Formula presented) decays to (Formula presented) in untagged two-photon interactions. We report an upper limit on the product of the two-photon partial width and the branching fraction, (Formula presented) of less than 1.1 eV at the 95% confidence level; systematic uncertainties are included. This data set is four times larger than that used in the previous CLEO publication.
|Original language||English (US)|
|Journal||Physical Review D - Particles, Fields, Gravitation and Cosmology|
|State||Published - 2002|
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)