Abstract
We report on a 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. This measurement uses data recorded by the D0 detector at the Fermilab Tevatron in 1994-1995. It represents the first investigation of a proposal that ratios between W and Z observables can be calculated reliably using perturbative QCD, even when the individual observables are not. Using the ratio of differential cross sections reduces both experimental and theoretical uncertainties, and can therefore provide smaller overall uncertainties in the measured mass and width of the W boson than current methods used at hadron colliders.
Highlights
October 2001W and Z boson ipnropdpucctoiollnisaiosnasfautn√ctiso=n o1f.8traTnesVverse momentum. V.M
The DØ Collaboration has recently published [1,2] measurements of differential cross sections for W and Z boson production as a function of transverse momentum
Based on the measured W and Z boson differential cross sections listed in Table 1, we extract the ratio of Summary of the measured W and Z boson differential production cross sections as a function of transverse momentum used to calculate the ratio
Summary
W and Z boson ipnropdpucctoiollnisaiosnasfautn√ctiso=n o1f.8traTnesVverse momentum. V.M. Received 6 July 2001; received in revised form 8 August 2001; accepted 9 August 2001
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