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A MEASUREMENT OF THE TAU-LIFETIME

Abstract:
We have reconstructed 695 three-track τ decay vertices using a high resolution drift chamber close to the interaction point. From the distribution of decay lengths we measure the lifetime to be (3.06 ±0.20±0.14)×10-13 s. Using this result we find that the ratio of charged weak coupling constant for the τ to that of the μ, G τ/G μ=0.967±0.040 consistent with the concept of lepton universality. © 1988 Springer-Verlag.
Publication status:
Published

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Publisher copy:
10.1007/BF01548282

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Publisher:
Springer-Verlag
Journal:
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS
Volume:
39
Issue:
3
Pages:
331-337
Publication date:
1988-01-01
DOI:
EISSN:
1434-6052
ISSN:
0170-9739
URN:
uuid:0fddc380-2261-4dbb-adf5-76effa85a678
Source identifiers:
25373
Local pid:
pubs:25373
Language:
English

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