Determination of the $\tau$ Lifetime in High-energy $e^+ e^-$ Annihilation - INSPIRE

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Determination of the $\tau$ Lifetime in High-energy $e^+ e^-$ Annihilation

TASSO

Collaboration

•

M. Althoff
(
- Aachen, Tech. Hochsch.
)

Feb, 1984

7 pages

Published in:

Phys.Lett.B 141 (1984) 264-270

Published: 1984

DOI:

10.1016/0370-2693(84)90214-4

Report number:

DESY-84-017

Experiments:

DESY-PETRA-TASSO

View in:

ADS Abstract Service

reference search56 citations

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Abstract: (Elsevier)

We have determined the τ lifetime in e + e − annihilations at an average centre of mass energy of 42.5 GeV, using a pressurized drift chamber close to the interaction point. We find the lifetime to be (3.18 −0.75 +0.59 ± 0.56) × 10 −13 s. The charged weak τ coupling constant relative to that of the μ is found to be G τ / G μ = 0.94 −0.09 +0.12 ± 0.09, in good agreement lepton universality.

ELECTRON POSITRON: COLLIDING BEAMS
COLLIDING BEAMS: ELECTRON POSITRON
ELECTRON POSITRON: ANNIHILATION
ANNIHILATION: ELECTRON POSITRON
ELECTRON POSITRON: EXCLUSIVE REACTION
TAU: ELECTROPRODUCTION
ELECTROPRODUCTION: TAU
TAU: PAIR PRODUCTION
PAIR PRODUCTION: TAU
TAU: LIFETIME

References(12)

Figures(0)

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