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

DO Collaboration, The and Bertram, Iain A. and Borissov, Guennadi V. and Ratoff, Peter N. and Sopczak, Andre (2005) Helicity of the W boson in lepton +jets t ¯t events. Physics Letters B, 617 (1-2). pp. 1-10. ISSN 0370-2693

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Abstract

We examine properties of 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 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 Collider at , 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:
Journal Article
Journal or Publication Title:
Physics Letters B
Additional Information:
Author list is partial - see original article for full author list.
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
81983
Deposited By:
Deposited On:
08 Oct 2016 00:06
Refereed?:
Yes
Published?:
Published
Last Modified:
19 Aug 2020 08:11