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Measurement of the relative fraction of ttbar events produced via gluon-fusion in ppbar collision at √s = 1.96 TeV at CDF.
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Yamaoka, Jared. Measurement of the relative fraction of ttbar events produced via gluon-fusion in ppbar collision at √s = 1.96 TeV at CDF. Retrieved from https://doi.org/doi:10.7282/T34Q7VB2

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Uniform TitleMeasurement of the relative fraction of ttbar events produced via gluon-fusion in ppbar collision at √s = 1.96 TeV at CDF.
NameYamaoka, Jared (author); Somalwar, Sunil (chair); Lovelace, Claud (internal member); Thomson, Gordon (internal member); Matilsky, Terry (internal member); Thomson, Evelyn (outside member); Rutgers University; Graduate School - New Brunswick
Date Created2007
Other Date2007-10 (degree)
SubjectPhysics and Astronomy, Particles (Nuclear physics), Quarks
Extentxiii, 101 pages
DescriptionIn this thesis we present a measurement of the relative fraction of ttbar events produced via gluon-fusion to the total number of ttbar events. Using the kinematics of the production and decay of the top and antitop quark pair, we trained a Neural Network to discriminate the gluon-fusion events. The Neural Network was then used as a template to fit for the gluon-fusion
fraction in data. Using a total integrated luminosity of 955 pb-1 we find the fraction of gluon-fusion event in all ttbar events to be <0.33 at the 68% confidence level and <0.61 at the 95% confidence level.
NotePh.D.
NoteIncludes bibliographical references (p. 96-100).
Genretheses, ETD doctoral
Persistent URLhttps://doi.org/doi:10.7282/T34Q7VB2
LanguageEnglish
CollectionGraduate School - New Brunswick Electronic Theses and Dissertations
Organization NameRutgers, The State University of New Jersey
RightsThe author owns the copyright to this work.
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