A measurement of tau polarization at LEP
Journal Article
·
· Bulletin of the American Physical Society
OSTI ID:374755
With a data sample of 86000 tau pairs collected in 1990 - 1993 the authors have measured the polarization of tau-leptons as a function of the production polar angle. They obtain for the ratio of vector to axial-vector weak neutral couplings for electrons g{sub Ve}/g{sub Ae}=0.0791{+-}0.0099(stat) {+-}0.0025 (syst) and taus g{sub V{tau}}/g{sub A{tau}} = 0.0752 {+-}0.063(stat){+-}0.0045(syst) consistent with the hypothesis of e - {tau} universality. Assuming universality of the e-{tau} neutral current the authors determine the effective electroweak mixing angle to be sin{sup 2}{theta}{sub W}{sup eff}=0.2309{+-}0.0016.
- OSTI ID:
- 374755
- Report Number(s):
- CONF-9304297--
- Journal Information:
- Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 2 Vol. 40; ISSN BAPSA6; ISSN 0003-0503
- Country of Publication:
- United States
- Language:
- English
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