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Measurement of the transverse spin correlations in the decay Z → τ+τ−

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Measurement of the transverse spin correlations in the decay Z → τ+τ−. / ALEPH Collaboration.
In: Physics Letters B, Vol. 405, No. 1-2, 1997, p. 191-201.

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

Harvard

ALEPH Collaboration 1997, 'Measurement of the transverse spin correlations in the decay Z → τ+τ−', Physics Letters B, vol. 405, no. 1-2, pp. 191-201. https://doi.org/10.1016/S0370-2693(97)00664-3

APA

ALEPH Collaboration (1997). Measurement of the transverse spin correlations in the decay Z → τ+τ−. Physics Letters B, 405(1-2), 191-201. https://doi.org/10.1016/S0370-2693(97)00664-3

Vancouver

ALEPH Collaboration. Measurement of the transverse spin correlations in the decay Z → τ+τ−. Physics Letters B. 1997;405(1-2):191-201. doi: 10.1016/S0370-2693(97)00664-3

Author

ALEPH Collaboration. / Measurement of the transverse spin correlations in the decay Z → τ+τ−. In: Physics Letters B. 1997 ; Vol. 405, No. 1-2. pp. 191-201.

Bibtex

@article{09c34ea2729f43b38589911bf16cf7b9,
title = "Measurement of the transverse spin correlations in the decay Z → τ+τ−",
abstract = "For τ leptons produced in e+e− → τ+τ− interactions there are, in addition to the longitudinal spin correlations, two independent transverse spin correlations associated with the transverse (within the production plane) and normal (to the production plane) polarization components. A measurement of the transverse-transverse and transverse-normal τ spin correlations in the decay Z → τ+τ−, CTT and CTN, is presented based on the aplanarity angle of the decay products of both τ leptons. Using 80 pb−1 of data collected by ALEPH on the peak of the Z resonance, the results are CTT = 1.06±0.13 (stat) ±0.05(syst), and CTN = 0.08±0.13(stat)±0.04(syst). These values are in agreement with the Standard Model predictions, CTT = 0.99 and CTN = −0.01.",
author = "R. Barate and Alexander Finch and {ALEPH Collaboration}",
year = "1997",
doi = "10.1016/S0370-2693(97)00664-3",
language = "English",
volume = "405",
pages = "191--201",
journal = "Physics Letters B",
issn = "0370-2693",
publisher = "ELSEVIER SCIENCE BV",
number = "1-2",

}

RIS

TY - JOUR

T1 - Measurement of the transverse spin correlations in the decay Z → τ+τ−

AU - Barate, R.

AU - Finch, Alexander

AU - ALEPH Collaboration

PY - 1997

Y1 - 1997

N2 - For τ leptons produced in e+e− → τ+τ− interactions there are, in addition to the longitudinal spin correlations, two independent transverse spin correlations associated with the transverse (within the production plane) and normal (to the production plane) polarization components. A measurement of the transverse-transverse and transverse-normal τ spin correlations in the decay Z → τ+τ−, CTT and CTN, is presented based on the aplanarity angle of the decay products of both τ leptons. Using 80 pb−1 of data collected by ALEPH on the peak of the Z resonance, the results are CTT = 1.06±0.13 (stat) ±0.05(syst), and CTN = 0.08±0.13(stat)±0.04(syst). These values are in agreement with the Standard Model predictions, CTT = 0.99 and CTN = −0.01.

AB - For τ leptons produced in e+e− → τ+τ− interactions there are, in addition to the longitudinal spin correlations, two independent transverse spin correlations associated with the transverse (within the production plane) and normal (to the production plane) polarization components. A measurement of the transverse-transverse and transverse-normal τ spin correlations in the decay Z → τ+τ−, CTT and CTN, is presented based on the aplanarity angle of the decay products of both τ leptons. Using 80 pb−1 of data collected by ALEPH on the peak of the Z resonance, the results are CTT = 1.06±0.13 (stat) ±0.05(syst), and CTN = 0.08±0.13(stat)±0.04(syst). These values are in agreement with the Standard Model predictions, CTT = 0.99 and CTN = −0.01.

U2 - 10.1016/S0370-2693(97)00664-3

DO - 10.1016/S0370-2693(97)00664-3

M3 - Journal article

VL - 405

SP - 191

EP - 201

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

IS - 1-2

ER -