Measurement of the Branching Fraction of the Decay $ϒ (1S)\toτ^{+}τ^{-}$

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21 March 1983

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 50 (12), 877-880
https://doi.org/10.1103/physrevlett.50.877

Abstract

The branching fraction for the decay of the

ϒ (1 S)

into

τ

paris has been measured to be (3.4±0.4±0.4)%. This result agrees with the previously measured branching ratio of the decay into muon pairs.

Keywords

This publication has 9 references indexed in Scilit:

Measurement of the Leptonic Branching Ratios of theϒ(1S),ϒ(2S), andϒ(3S)
Physical Review Letters, 1983
Precise Measurement of $τ$ -Decay Charged-Particle Multiplicity Distribution
Physical Review Letters, 1982
Measurement of e+e−→τ+τ− at high energy and properties of the τ lepton
Physics Letters B, 1982
Measurement of the Branching of $ϒ (2S)\toπ^{+}π^{-}+ϒ(1S)$
Physical Review Letters, 1981
Total Width and Leptonic Branching Ratio of the $ϒ (9.46)$
Physical Review Letters, 1981
Observation of a Fourth Upsilon State in $e^{+} e^{-}$ Annihilations
Physical Review Letters, 1980
A determination of the total width of the ϒ(9.46) meson
Physics Letters B, 1980
Determination of the electronic branching ratio of the ϒ(9.46) and an upper limit for its total width
Physics Letters B, 1980
Measurement of leptonic branching ratios of the ?(9.46)
The European Physical Journal C, 1979

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