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Measurement of the polarization of tau leptons produced in Z decays

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Measurement of the polarization of tau leptons produced in Z decays. / ALEPH Collaboration.

In: Physics Letters B, Vol. 265, No. 3-4, 1991, p. 430-444.

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ALEPH Collaboration 1991, 'Measurement of the polarization of tau leptons produced in Z decays', Physics Letters B, vol. 265, no. 3-4, pp. 430-444. https://doi.org/10.1016/0370-2693(91)90079-6

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ALEPH Collaboration. / Measurement of the polarization of tau leptons produced in Z decays. In: Physics Letters B. 1991 ; Vol. 265, No. 3-4. pp. 430-444.

Bibtex

@article{a4a68926391044608e15b71d4422c674,
title = "Measurement of the polarization of tau leptons produced in Z decays",
abstract = "The polarization of τ leptons produced in the reaction e+e−→τ+τ− at the Z resonance has been measured using the τ decay modes eνeντ, μνμντ, πντ, ϱντ, and a1ντ. The mean value obtained is Pτ = −0.152±0.045, indicating that parity is violated in the neutral current process e+e− → τ+τ−. The result corresponds to a ratio of a neutral current vector and axial vector coupling constants of the τ lepton and a value of the electroweak mixing parameter sin2θw(M2Z) = 0.2302 ± 0.0058.",
author = "D. Decamp and Alexander Finch and {ALEPH Collaboration}",
year = "1991",
doi = "10.1016/0370-2693(91)90079-6",
language = "English",
volume = "265",
pages = "430--444",
journal = "Physics Letters B",
issn = "0370-2693",
publisher = "ELSEVIER SCIENCE BV",
number = "3-4",

}

RIS

TY - JOUR

T1 - Measurement of the polarization of tau leptons produced in Z decays

AU - Decamp, D.

AU - Finch, Alexander

AU - ALEPH Collaboration

PY - 1991

Y1 - 1991

N2 - The polarization of τ leptons produced in the reaction e+e−→τ+τ− at the Z resonance has been measured using the τ decay modes eνeντ, μνμντ, πντ, ϱντ, and a1ντ. The mean value obtained is Pτ = −0.152±0.045, indicating that parity is violated in the neutral current process e+e− → τ+τ−. The result corresponds to a ratio of a neutral current vector and axial vector coupling constants of the τ lepton and a value of the electroweak mixing parameter sin2θw(M2Z) = 0.2302 ± 0.0058.

AB - The polarization of τ leptons produced in the reaction e+e−→τ+τ− at the Z resonance has been measured using the τ decay modes eνeντ, μνμντ, πντ, ϱντ, and a1ντ. The mean value obtained is Pτ = −0.152±0.045, indicating that parity is violated in the neutral current process e+e− → τ+τ−. The result corresponds to a ratio of a neutral current vector and axial vector coupling constants of the τ lepton and a value of the electroweak mixing parameter sin2θw(M2Z) = 0.2302 ± 0.0058.

U2 - 10.1016/0370-2693(91)90079-6

DO - 10.1016/0370-2693(91)90079-6

M3 - Journal article

VL - 265

SP - 430

EP - 444

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

IS - 3-4

ER -