DO Collaboration, The and Bertram, Iain A. and Borissov, Guennadi V. and Ratoff, Peter N. and Sopczak, Andre (2005) Search for right-handed W bosons in top quark decay. Physical Review D, 72 (1). 011104. ISSN 1550-7998Full text not available from this repository.
We present a measurement of the fraction f+ of right-handed W bosons produced in top quark decays, based on a candidate sample of t[overline t] events in the lepton+jets decay mode. These data correspond to an integrated luminosity of 230 pb-1, collected by the D0 detector at the Fermilab Tevatron p[overline p] Collider at sqrt(s)=1.96 TeV. We use a constrained fit to reconstruct the kinematics of the t[overline t] and decay products, which allows for the measurement of the leptonic decay angle theta* for each event. By comparing the costheta* distribution from the data with those for the expected background and signal for various values of f+, we find f+=0.00±0.13(stat)±0.07(syst). This measurement is consistent with the standard model prediction of f+=3.6×10-4.
|Journal or Publication Title:||Physical Review D|
|Additional Information:||Author list is partial - see original article for full author list|
|Uncontrolled Keywords:||intermediate boson production ; quark decay ; elementary particle jets ; proton-proton inclusive interactions ; meson leptonic decay ; standard model ; high-energy elementary particle interactions|
|Subjects:||Q Science > QC Physics|
|Departments:||Faculty of Science and Technology > Physics|
|Deposited By:||Ms Margaret Calder|
|Deposited On:||03 Jul 2008 20:22|
|Last Modified:||26 Jul 2012 14:43|
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