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Title:Search for Single Top Quark Production With the CDF Run II Detector Using a Multivariate Likelihood Method
Author(s):Budd, Sarah Rebecca
Doctoral Committee Chair(s):Kevin Pitts
Department / Program:Physics
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Physics, Elementary Particles and High Energy
Abstract:This thesis describes a measurement of single-top quark production in pp collisions at s =1.96 TeV using the CDF II detector at the Fermilab Tevatron. This search is performed using a Multivariate Likelihood technique with 2.2 fb-1 of data. The observed cross section for the combined t-channel and s-channel single top cross sections (sigmat and sigmas) is calculated to be sigmas + sigma t = 1.7+0.9-0.8 A measurement of Vtb is derived from this cross section, with the value of |Vtb| = 0.77+0.18-0.21 (exp.) +/- 0.07(theor.), where here the experimental and theoretical errors come from the errors associated with the observed and theoretical single-top cross sections respectively. The probability that this result originates from a background fluctuation, is measured to be 2.40 x 10-2 corresponding to 2.0sigma with an expected probability of 2.32 x 10-4 corresponding to 3.50sigma.
Issue Date:2008
Description:194 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2008.
Other Identifier(s):(MiAaPQ)AAI3337708
Date Available in IDEALS:2015-09-25
Date Deposited:2008

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