Achard, P. ; Adriani, O. ; Aguilar-Benitez, M. ; Gurtu, A. ; et., al (2003) Measurement of W polarisation at LEP Physics Letters B, 557 (3-4). pp. 147-156. ISSN 0370-2693
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0370-2693(03)00172-2
Abstract
The three different helicity states of W bosons produced in the reaction e+e-→W+W-→ℓνqq-1at LEP are studied using leptonic and hadronic W decays. Data at centre-of-mass energies √s=183-209 GeV are used to measure the polarisation of W bosons, and its dependence on the W boson production angle. The fraction of longitudinally polarised W bosons is measured to be 0.218±0.027±0.016 where the first uncertainty is statistical and the second systematic, in agreement with the Standard Model expectation.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 83656 |
| Deposited On: | 21 Feb 2012 14:51 |
| Last Modified: | 21 Feb 2012 14:51 |
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