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Measurement of the strong coupling constant using T decays

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Measurement of the strong coupling constant using T decays. / Buskulic, D.; Finch, Alexander.
In: Physics Letters B, Vol. 307, No. 1-2, 1993, p. 209-220.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

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Buskulic D, Finch A. Measurement of the strong coupling constant using T decays. Physics Letters B. 1993;307(1-2):209-220. doi: 10.1016/0370-2693(93)90212-Z

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Buskulic, D. ; Finch, Alexander. / Measurement of the strong coupling constant using T decays. In: Physics Letters B. 1993 ; Vol. 307, No. 1-2. pp. 209-220.

Bibtex

@article{d2ae02c582074c77886fbcee3899cae0,
title = "Measurement of the strong coupling constant using T decays",
abstract = "The strong coupling constant is determined from the leptonic branching ratios, the lifetime, and the invariant mass distribution of the hadronic final state of the τ lepton, using data accumulated at LEP with the ALEPH detector. The strong coupling constant measurement, αs(mτ2) = 0.330±0.046, evolved to the Z mass yields αs(MZ2) = 0.188±0.005. The error includes experimental and theoretical uncertainties, the latter evaluated in the framework of the Shifman, Vainshtein and Zakharov (SVZ) approach. The method allows the non-perturbative contribution to the hadronic decay rate to be determined to be 0.3±0.5%.",
author = "D. Buskulic and Alexander Finch",
year = "1993",
doi = "10.1016/0370-2693(93)90212-Z",
language = "English",
volume = "307",
pages = "209--220",
journal = "Physics Letters B",
issn = "0370-2693",
publisher = "ELSEVIER SCIENCE BV",
number = "1-2",

}

RIS

TY - JOUR

T1 - Measurement of the strong coupling constant using T decays

AU - Buskulic, D.

AU - Finch, Alexander

PY - 1993

Y1 - 1993

N2 - The strong coupling constant is determined from the leptonic branching ratios, the lifetime, and the invariant mass distribution of the hadronic final state of the τ lepton, using data accumulated at LEP with the ALEPH detector. The strong coupling constant measurement, αs(mτ2) = 0.330±0.046, evolved to the Z mass yields αs(MZ2) = 0.188±0.005. The error includes experimental and theoretical uncertainties, the latter evaluated in the framework of the Shifman, Vainshtein and Zakharov (SVZ) approach. The method allows the non-perturbative contribution to the hadronic decay rate to be determined to be 0.3±0.5%.

AB - The strong coupling constant is determined from the leptonic branching ratios, the lifetime, and the invariant mass distribution of the hadronic final state of the τ lepton, using data accumulated at LEP with the ALEPH detector. The strong coupling constant measurement, αs(mτ2) = 0.330±0.046, evolved to the Z mass yields αs(MZ2) = 0.188±0.005. The error includes experimental and theoretical uncertainties, the latter evaluated in the framework of the Shifman, Vainshtein and Zakharov (SVZ) approach. The method allows the non-perturbative contribution to the hadronic decay rate to be determined to be 0.3±0.5%.

U2 - 10.1016/0370-2693(93)90212-Z

DO - 10.1016/0370-2693(93)90212-Z

M3 - Journal article

VL - 307

SP - 209

EP - 220

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

IS - 1-2

ER -