Abazov, V. M. ; Mondal, N. K. ; et., al (2005) Helicity of the W boson in lepton + jets tt¯ events Physics Letters B, 617 (1-2). pp. 1-10. 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/j.physletb.2005.04.069
Abstract
We examine properties of tt¯ 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 tt¯ final state, as a function of the helicity of the W boson. Using the 125 events/pb of data collected by the D∅ experiment at the Fermilab Tevatron pp¯ Collider at √s=1.8 TeV, we obtain a longitudinal helicity fraction F0=0.56±0.31, consistent with the prediction of F0=0.70 from the standard model.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 87382 |
| Deposited On: | 17 Mar 2012 13:00 |
| Last Modified: | 17 Mar 2012 13:01 |
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