- Abstract:
-
We examine properties of tt̄ candidate events in lepton + jets final states to establish the helicities of W bosons in t→W+b decays. Our analysis is based on a direct calculation of a probability density for each event to correspond to a tt̄ final state, as a function of the helicity of the W boson. Using the 125 events/pb of data collected by the DØ experiment at the Fermilab Tevatron pp̄ Collider at s=1.8 TeV, we obtain a longitudinal helicity fraction F0=0.56±0.31, consistent with the pred...
Expand abstract - Publisher copy:
- 10.1016/j.physletb.2005.04.069
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- Journal:
- Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
- Volume:
- 617
- Issue:
- 1-2
- Pages:
- 1-10
- Publication date:
- 2005-06-23
- DOI:
- ISSN:
-
0370-2693
- URN:
-
uuid:8d272f42-b6be-4153-854c-bcabee04d93d
- Source identifiers:
-
178303
- Local pid:
- pubs:178303
- Language:
- English
- Copyright date:
- 2005
Journal article
Helicity of the W boson in lepton + jets tt̄ events
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