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Title:A search for top quarks in proton-antiproton collisions using dileptons
Author(s):Martin, Andrew James
Doctoral Committee Chair(s):Errede, Steven M.
Department / Program:Physics
Discipline:Physics
Degree Granting Institution:University of Illinois at Urbana-Champaign
Degree:Ph.D.
Genre:Dissertation
Subject(s):Physics, Elementary Particles and High Energy
Abstract:A search for tt pairs in pp collisions with a center of mass energy $\sqrt s$ = 1.8TeV is presented. The analysis looks for tt pairs which decayed through the chain $\bar {tt}\to W\sp+bW\sp-\bar b\to\ell\sp+\bar \nu b\ell\sp-\nu\bar b$ where one of the b quarks is explicitly identified. In a sample of 109.4 $\pm$ 7.2 pb$\sp{-1}$ of data, 6 tags in 4 events are found with an expected background of 1.53 $\pm$.33 events. This results in an estimated production cross section of 4.6$\sbsp{-3.1}{+4.4}$ pb at $m\sb{top}$ = 175 GeV/$c\sp2.$
Issue Date:1996
Type:Text
Language:English
URI:http://hdl.handle.net/2142/19653
ISBN:9780591088700
Rights Information:Copyright 1996 Martin, Andrew James
Date Available in IDEALS:2011-05-07
Identifier in Online Catalog:AAI9702600
OCLC Identifier:(UMI)AAI9702600


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