Electronic branching ratio of the τ lepton
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Issue Date
1992-06-01Author
Ammar, Raymond G.
Baringer, Philip S.
Coppage, Don
Davis, Robin E. P.
Kelly, M.
Kwak, Nowhan
Lam, H.
Publisher
American Physical Society
Type
Article
Article Version
Scholarly/refereed, publisher version
Metadata
Show full item recordAbstract
Using data accumulated by the CLEO I detector operating at the Cornell Electron Storage Ring, we have measured the ratio R=Γ(τ→eν¯(e)ν(τ)) / Γ(1) where Γ(1) is the τ 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 τ lepton to electrons, Be=0.192±0.004±0.006.
Description
This is the publisher's version, also available electronically from http://journals.aps.org/prd/abstract/10.1103/PhysRevD.45.3976.
ISSN
1550-7998Collections
Citation
R. Ammar et al. (1992). "Electronic branching ratio of the τ lepton." Physical Review D, 1991(45):3976. http://dx.doi.org/10.1103/PhysRevD.45.3976
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