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Measurement of the tau lepton polarisation at LEP2
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear and Particle Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear and Particle Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear and Particle Physics.
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2008 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 659, no 1-2, 65-73 p.Article in journal (Refereed) Published
Abstract [en]

A first measurement of the average polarisation P-tau of tau leptons produced in e(+)e(-) annihilation at energies significantly above the Z resonance is presented. The polarisation is determined from the kinematic spectra of tau hadronic decays. The measured value P-tau = -0.164 +/- 0.125 is consistent with the Standard Model prediction for the mean LEP energy of 197 GeV.

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2008. Vol. 659, no 1-2, 65-73 p.
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Physical Sciences
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URN: urn:nbn:se:uu:diva-112513DOI: 10.1016/j.physletb.2007.10.022ISI: 000252878000010OAI: oai:DiVA.org:uu-112513DiVA: diva2:286297
Available from: 2010-01-14 Created: 2010-01-14 Last updated: 2017-12-12Bibliographically approved

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