Abstract
We present the first measurement of the and angular coefficients of the boson produced in proton-antiproton collisions. We study and candidate events produced in association with at least one jet at CDF, during Run Ia and Run Ib of the Tevatron at . The corresponding integrated luminosity was . The jet balances the transverse momentum of the and introduces QCD effects in boson production. The extraction of the angular coefficients is achieved through the direct measurement of the azimuthal angle of the charged lepton in the Collins-Soper rest-frame of the boson. The angular coefficients are measured as a function of the transverse momentum of the boson. The electron, muon, and combined results are in good agreement with the standard model prediction, up to order in QCD.
26 More- Received 2 April 2005
DOI:https://doi.org/10.1103/PhysRevD.73.052002
©2006 American Physical Society