Abstract
We present a measurement of the fraction of right-handed bosons produced in top quark decays, based on a candidate sample of events in the and dilepton decay channels corresponding to an integrated luminosity of collected by the D0 detector at the Fermilab Tevatron Collider at . We reconstruct the decay angle for each lepton. By comparing the distribution from the data with that for the expected background and signal for various values of (where we assume that the fraction of longitudinally-polarized bosons has the standard model value of 0.70), we find ( at 95% C.L.), consistent with the standard model prediction of .
- Received 26 September 2006
DOI:https://doi.org/10.1103/PhysRevD.75.031102
©2007 American Physical Society