UMD Theses and Dissertations

Permanent URI for this collectionhttp://hdl.handle.net/1903/3

New submissions to the thesis/dissertation collections are added automatically as they are received from the Graduate School. Currently, the Graduate School deposits all theses and dissertations from a given semester after the official graduation date. This means that there may be up to a 4 month delay in the appearance of a given thesis/dissertation in DRUM.

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Author: search.filters.author.Zhu, JunjieSubject: search.filters.subject.Transverse Mass

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    Direct Measurement of the W Boson Decay Width in Proton-Antiproton Collisions at sqrt(s)=1.96 TeV
    (2004-10-28) Zhu, Junjie; Hadley, Nicholas J.; Eno, Sarah C.; Physics; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    This dissertation describes a direct measurement of the W boson total decay width, using the DZero detector at the Fermilab Tevatron Collider. The measurement uses an integrated luminosity of 177.3 pb-1 data, collected during the 2002-2003 run. The width is determined from the shape of the transverse mass distribution, MT, by fitting the data in the tail region 100<MT<200 GeV. The result is Gamma_{W}=2.011 +- 0.093 (stat) +- 0.107 (syst) GeV.