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This work develops novel data analysis techniques enabling aspects of the Standard Model of particle physics to be tested with unprecedented precision using data from the DZero experiment at the high energy “Tevatron” proton-antiproton collider at Fermilab, Chicago. Vesterinen's measurements of the transverse momentum of Z bosons using the novel variable φ* have exposed deficiencies in the current state-of-the-art theoretical predictions for vector boson production at hadron colliders. These techniques are now being used in the experiments at CERN’s Large Hadron Collider (LHC) and have stimulated considerable interest in the theoretical particle physics community. Furthermore, Vesterinen's measurements of the cross sections for the production of pairs of vector bosons (WZ and ZZ) are to date the most precise ever made.
This dissertation describes a measurement of the shape of the boson transverse momentum distribution in p{bar p} 2!Z/[gamma]* 2!ee− + X events at a center-of-mass energy of 1.96 TeV. The measurement is made for events with electron-positron mass between 70
The Collider Detector at Fermilab (CDF) was used to measure the transverse momentum distribution of W boson produced in proton-antiproton collisions at the Tevatron collider. The W bosons were identified by the decay W 2!e[nu]. The results are in good agreement with a next-to-leading order calculation. The cross section for W production with P{sub T}> 50 GeV/c is 423 {plus minus} 58 (stat.) {plus minus} 108 (sys.) pb. 58 refs., 53 figs., 16 tabs.
This dissertation describes a measurement of the shape of the boson transverse momentum distribution in p$ar{p}$ → Z/?* → e+e- + X events at a center-of-mass energy of 1.96 TeV. The measurement is made for events with electron-positron mass between 70 Msubee/sub 110 GeV/csup2/sup and uses 976 pb