Tau-lepton production and decay at Petra energies

Physics

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https://doi.org/10.1016/0370-2693(85)90634-3
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Tau-lepton production and decay at Petra energies. / JADE Collaboration.
In: Physics Letters B, Vol. 161, No. 1-3, 1985, p. 188-196.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

JADE Collaboration 1985, 'Tau-lepton production and decay at Petra energies', Physics Letters B, vol. 161, no. 1-3, pp. 188-196. https://doi.org/10.1016/0370-2693(85)90634-3

APA

JADE Collaboration (1985). Tau-lepton production and decay at Petra energies. Physics Letters B, 161(1-3), 188-196. https://doi.org/10.1016/0370-2693(85)90634-3

Vancouver

JADE Collaboration. Tau-lepton production and decay at Petra energies. Physics Letters B. 1985;161(1-3):188-196. doi: 10.1016/0370-2693(85)90634-3

Author

JADE Collaboration. / Tau-lepton production and decay at Petra energies. In: Physics Letters B. 1985 ; Vol. 161, No. 1-3. pp. 188-196.

Bibtex

@article{f5c016fff7004ad7b9d2d639b5fcb7b7,

title = "Tau-lepton production and decay at Petra energies",

abstract = "The production and decay of τ-pairs was studied with the JADE detector at PETRA at center-of-mass energies of 30 ⩽√s ⩽ 46.78 GeV. The total production cross section for τ-pairs agreed with QED predictions to order α3. Lower limits on QED cut-off parameters of Λ+ > 285 GeV and Λ− > 210 GeV at 95% confidence level were ontained. The decay branching fractions into one and three charged particles were determined to be (86.1 ± 0.5 ± 0.9)% and (13.6±0.5 ±0.80)%. In the angular distributions a forward-backward asymmetry was observed, from which the axial-vector weak charge to the τ was determined to be aτ = −0.74 ± 0.22 in agreement with the standard model. An analysis of the process e+e− → τ+τ−γ showed agreement with QED calculations to O(α3).",

author = "W. Bartel and Alexander Finch and {JADE Collaboration}",

year = "1985",

doi = "10.1016/0370-2693(85)90634-3",

language = "English",

volume = "161",

pages = "188--196",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "ELSEVIER SCIENCE BV",

number = "1-3",

}

RIS

TY - JOUR

T1 - Tau-lepton production and decay at Petra energies

AU - Bartel, W.

AU - Finch, Alexander

AU - JADE Collaboration

PY - 1985

Y1 - 1985

N2 - The production and decay of τ-pairs was studied with the JADE detector at PETRA at center-of-mass energies of 30 ⩽√s ⩽ 46.78 GeV. The total production cross section for τ-pairs agreed with QED predictions to order α3. Lower limits on QED cut-off parameters of Λ+ > 285 GeV and Λ− > 210 GeV at 95% confidence level were ontained. The decay branching fractions into one and three charged particles were determined to be (86.1 ± 0.5 ± 0.9)% and (13.6±0.5 ±0.80)%. In the angular distributions a forward-backward asymmetry was observed, from which the axial-vector weak charge to the τ was determined to be aτ = −0.74 ± 0.22 in agreement with the standard model. An analysis of the process e+e− → τ+τ−γ showed agreement with QED calculations to O(α3).

AB - The production and decay of τ-pairs was studied with the JADE detector at PETRA at center-of-mass energies of 30 ⩽√s ⩽ 46.78 GeV. The total production cross section for τ-pairs agreed with QED predictions to order α3. Lower limits on QED cut-off parameters of Λ+ > 285 GeV and Λ− > 210 GeV at 95% confidence level were ontained. The decay branching fractions into one and three charged particles were determined to be (86.1 ± 0.5 ± 0.9)% and (13.6±0.5 ±0.80)%. In the angular distributions a forward-backward asymmetry was observed, from which the axial-vector weak charge to the τ was determined to be aτ = −0.74 ± 0.22 in agreement with the standard model. An analysis of the process e+e− → τ+τ−γ showed agreement with QED calculations to O(α3).

U2 - 10.1016/0370-2693(85)90634-3

DO - 10.1016/0370-2693(85)90634-3

M3 - Journal article

VL - 161

SP - 188

EP - 196

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

IS - 1-3

ER -

Research

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