6533b858fe1ef96bd12b6c3a
RESEARCH PRODUCT
Helicity fractions of W bosons from top quark decays
Jan H. PiclumAndrzej CzarneckiJürgen G. Körnersubject
PhysicsQuantum chromodynamicsNuclear and High Energy PhysicsTop quarkParticle physicsHigh Energy Physics::LatticeHigh Energy Physics::PhenomenologyTevatronTop quark condensateHelicityBottom quarkAtomic and Molecular Physics and OpticsNuclear physicsW and Z bosonsHigh Energy Physics::ExperimentBosondescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-10-01 | Nuclear Physics B - Proceedings Supplements |