Helicity of the W boson in lepton + jets tt¯ events

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

Full text not available from this repository.

Official URL: http://www.sciencedirect.com/science/article/pii/S...

Related URL: http://dx.doi.org/10.1016/j.physletb.2005.04.069


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

Repository Staff Only: item control page