Differential cross section for W boson production as a function of transverse momentum in proton-antiproton collisions at 1.8 TeV

Abstract

We report a measurement of the differential cross section for W boson production as a function of its transverse momentum in proton-antiproton collisions at sqrt{s} = 1.8 TeV. The data were collected by the D0 experiment at the Fermilab Tevatron Collider during 1994-1995 and correspond to an integrated luminosity of 85 pb^{-1}. The results are in good agreement with quantum chromodynamics over the entire range of transverse momentum.

Figures (3)

• Figure 1: Differential cross section for $W\rightarrow e\nu$ production. The solid line is the theoretical prediction of Ref. Ladinsky:1994zn. Data points show only statistical uncertainties. The fractional systematic uncertainty, shown as the band in the lower plot, does not include an overall $4.4 \%$ normalization uncertainty in integrated luminosity.
• Figure 2: Differential cross section for $W$ boson production compared to three resummation calculations and to the fixed-order calculation. Uncertainties on data include both statistical and systematical contributions (other than an overall normalization uncertainty in integrated luminosity). Also shown are the fractional differences (Data--Theory)/Theory between data and the resummed predictions.
• Figure 3: Differential cross section for $W$ boson production in the intermediate and high $p_T^W$ regions. Uncertainties on data include both statistical and systematical contributions (other than an overall normalization uncertainty in integrated luminosity).