A Measurement of the Branching Fraction of the Decay $\Upsilon$ (1s) $\to \tau^+ \tau^-$ - INSPIRE

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A Measurement of the Branching Fraction of the Decay $\Upsilon$ (1s) $\to \tau^+ \tau^-$

CLEO

Collaboration

•

R. Giles
(
- Harvard U.
)

Jan, 1983

10 pages

Published in:

Phys.Rev.Lett. 50 (1983) 877

Contribution to:

11th International Symposium on Lepton and Photon Interactions at High Energies

DOI:

10.1103/PhysRevLett.50.877

PDG:

{{\mathit \Upsilon}{(1S)}}

\rightarrow

{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}

Report number:

CLNS-83-556,
CLEO-83-02

Experiments:

CESR-CLEO,
CLEO

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Abstract: (APS)

The branching fraction for the decay of the ϒ(1S) 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.

ELECTRON POSITRON: ANNIHILATION
ANNIHILATION: ELECTRON POSITRON
UPSILON(9460): ELECTROPRODUCTION
ELECTROPRODUCTION: UPSILON(9460)
UPSILON(9460): LEPTONIC DECAY
LEPTONIC DECAY: UPSILON(9460)
UPSILON(9460): BRANCHING RATIO
CORNELL Cornell CESR Stor STOR
CLEO
EXPERIMENTAL RESULTS

References(9)

Figures(0)

Measurement of Leptonic Branching Ratios of the $\Upsilon$ (9.46)

PLUTO

Collaboration

•

Christoph Berger
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CLEO

Collaboration

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J.J. Mueller
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et al.

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Total Width and Leptonic Branching Ratio of the $\Upsilon$ (9.46)

LENA

Collaboration

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B. Niczyporuk
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CELLO

Collaboration

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H.J. Behrend
(
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)

et al.

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Precise Measurement of $\tau$ Decay Charged Particle Multiplicity Distribution

et al.

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Observation of a Fourth Upsilon State in e+ e- Annihilations

CLEO

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D. Andrews
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et al.

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