Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2001-06-05
Phys.Lett. B517 (2001) 299-308
Physics
High Energy Physics
High Energy Physics - Experiment
14 pages, 2 figures, submitted to EPS and Lepton Photon 2001
Scientific paper
We report on a preliminary measurement of the ratio of the differential cross sections for W and Z boson production as a function of transverse momentum in proton-antiproton collisions at $\sqrt{s}$ = 1.8 TeV. It has been shown that the ratio between W and Z observables can be reliably calculated using perturbative QCD, even when the individual observables are not. We present the first comparison between the measurement of a W and Z observable ratio and a purely perturbative calculation. The use of the ratio reduces both experimental and theoretical uncertainites and might result in smaller overall uncertainties on the measured W mass and width, compared to currently used methods at hadron colliders.
"D0 Collaboration
Abazov V. M.
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