Document Type
Article
Publication Date
1-1-1994
Abstract
Branching ratios for the dominant Cabibbo-suppressed decays of the τ lepton have been measured by CLEO II in e+e- annihilation at the Cornell Electron Storage Ring (s∼10.6 GeV) using kaons with momenta below 0.7 GeV/c. The inclusive branching ratio into one charged kaon is (1.60 ± 0.12 ± 0.19)%. For the exclusive decays, B(τ-→K-ντ)=(0.66±0.07±0.09)%, B(τ-→K-π0ντ)=(0.51±0.10±0.07)%, and, based on three events, B(τ-→K-2π0ντ)<0.3% at the 90% confidence level. These represent significant improvements over previous results. B(τ-→K-π0ντ) is measured for the first time with exclusive π0 reconstruction. © 1994 The American Physical Society.
Recommended Citation
Battle, M.; Ernst, J.; Kwon, Y.; Roberts, S.; Thorndike, E. H.; Wang, C. H.; Dominick, J.; Lambrecht, M.; Sanghera, S.; Shelkov, V.; Skwarnicki, T.; Stroynowski, R.; Volobouev, I.; Wei, G.; Zadorozhny, P.; Artuso, M.; Goldberg, M.; He, D.; Horwitz, N.; Kennett, R.; Mountain, R.; Moneti, G. C.; Muheim, F.; Muheim, Y.; Playfer, S.; Rozen, Y.; Stone, S.; Thulasidas, M.; Vasseur, G.; Zhu, G.; and Bartelt, J., "Measurement of cabibbo-suppressed decays of the τ lepton" (1994). Physics Faculty Publications. 37.
https://digitalcommons.bowdoin.edu/physics-faculty-publications/37