| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1845099 | Nuclear Physics B - Proceedings Supplements | 2008 | 6 Pages |
Abstract
The helicity fractions of the W boson from top quark decays have been determined by the CDF and D0 collaborations at the Tevatron. It is to be expected that the present experimental errors will decrease with larger data samples and in particular with measurements at the LHC. These improvements have to be matched by advances on the theoretical side. In this presentation we present a progress report on the calculation of the next-to-next-to-leading order QCD corrections to the decay width of the top quark into polarised W bosons.
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