Search for Charged Higgs in ttbar Decay Products from Proton-Antiproton Collisions at s**(1/2) = 1.96 TeV

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This dissertation reports the results of a search for charged Higgs bosons in the decays of t{bar t} pairs produced in p{bar p} collisions at a center-of-mass energy of 1.96 TeV. The search is performed on a data sample recorded by the upgraded Collider Detector at Fermilab and corresponding to an integrated luminosity of 193 pb{sup -1}. The search is based on the relative rates of events in the different t{bar t} decay channels. Results are obtained in the context of different models. In the context of the minimal supersymmetric extension of the Standard Model (MSSM), for which they fully ... continued below

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250 pages

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Eusebi, Ricardo & U., /Rochester October 1, 2005.

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Description

This dissertation reports the results of a search for charged Higgs bosons in the decays of t{bar t} pairs produced in p{bar p} collisions at a center-of-mass energy of 1.96 TeV. The search is performed on a data sample recorded by the upgraded Collider Detector at Fermilab and corresponding to an integrated luminosity of 193 pb{sup -1}. The search is based on the relative rates of events in the different t{bar t} decay channels. Results are obtained in the context of different models. In the context of the minimal supersymmetric extension of the Standard Model (MSSM), for which they fully account for radiative and Yukawa coupling corrections, regions in the (m{sub H{sup {+-}}}, tan ({beta})) plane are excluded. In the Tauonic Higgs Model in which the charged Higgs is assumed to decay exclusively to {bar {tau}}, the BR(t {yields} H{sup +}b) is constrained to be less than 0.4 at 95% C.L. If no assumption is made on the charged Higgs decay, the BR(t {yields} H{sup +}b) is constrained to be less than 0.90 at 95% C.L. No evidence for charged Higgs production is found.

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250 pages

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  • Report No.: FERMILAB-THESIS-2005-33
  • Grant Number: AC02-76CH03000
  • Office of Scientific & Technical Information Report Number: 879047
  • Archival Resource Key: ark:/67531/metadc877659

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  • October 1, 2005

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  • Sept. 21, 2016, 2:29 a.m.

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  • Dec. 1, 2016, 6:53 p.m.

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Eusebi, Ricardo & U., /Rochester. Search for Charged Higgs in ttbar Decay Products from Proton-Antiproton Collisions at s**(1/2) = 1.96 TeV, thesis or dissertation, October 1, 2005; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc877659/: accessed August 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.