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

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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 the $ϒ (1 S)$ , $ϒ (2 S)$ , and $ϒ (3 S)$
Physical Review Letters, 1983
Precise Measurement of $τ$ -Decay Charged-Particle Multiplicity Distribution
Physical Review Letters, 1982
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Physics Letters B, 1982
Measurement of the Branching of $ϒ (2 S) \to π^{+} π^{-} + ϒ (1 S)$
Physical Review Letters, 1981
Total Width and Leptonic Branching Ratio of the $ϒ (9.46)$
Physical Review Letters, 1981
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