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oai:drum.lib.umd.edu:1903/67172016-03-29T05:43:42Zcom_1903_2269com_1903_12com_1903_2col_1903_2800col_1903_3

Eno, Sarah Wang, Lei Digital Repository at the University of Maryland University of Maryland (College Park, Md.) Physics 2007-06-22T05:32:14Z 2007-06-22T05:32:14Z 2007-03-26 http://hdl.handle.net/1903/6717 This dissertation describes a measurement of the shape of the boson transverse momentum distribution in $p\bar{p}\rightarrow Z/\gamma^{*}\rightarrow e^+e^- +X$ events at a center-of-mass energy of 1.96 TeV. The measurement is made for events with electron-positron mass between $70 < M_{ee} < 110$ GeV/c$^{2}$ and uses 976 pb$^{-1}$ of data collected at the Fermilab Tevatron collider with the D\O\ detector. The shape is measured both for the inclusive sample and for the subset of events containing a boson with large rapidity. The large-rapidity distribution shows better agreement with theory when the calculation is done using traditional Collins-Soper-Sterman resummation than when using a recent resummed form factor with modifications in the small-x region. 3260023 bytes application/pdf en_US Measurement of Z Boson Transverse Momentum In Proton-Antiproton Collisions At sqrt(s)=1.96 TeV Dissertation Physics, Elementary Particles and High Energy Electroweak Resummation Z Boson Production Tevatron open.access