Search for pair production of scalar top quarks decaying to a [tau] lepton and a [beta] quark in 1.96-tev pp collisions /
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| Other Authors: | , |
| Format: | Thesis eBook |
| Language: | English |
| Published: |
[College Station, Tex.] :
[Texas A&M University],
[2010]
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| Subjects: | |
| Online Access: | Link to OAK Trust copy |
| Abstract: | I present the results of a search for pair production of scalar top quarks (t̃₁) in an R-parity violating supersymmetric scenario using 322 pb⁻¹ of pp collisions at [square root]s = 1.96 TeV collected by the upgraded Collider Detector at Fermilab. I assume each t̃₁ decays into a [tau] lepton and a [beta] quark, with branching ratio [beta] , and search for nal states containing either an electron or a muon from a leptonic [tau] decay, a hadronically decaying [tau] lepton, and two or more jets. Two candidate events pass my nal selection criteria, consistent with the expectation from standard model processes. I present upper limits on the cross section times branching ratio squared [sigma](t̃₁t̃₁) X [beta]² as a function of the stop mass (mt̃₁). Assuming [beta]= 1, I set a 95% condence level limit m(t̃₁) > 153 GeV=c². These limits are also fully applicable to the case of a pair produced third generation scalar leptoquark that decays into a [tau] lepton and a [beta] quark. |
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| Item Description: | "Major Subject: Physics" Title from author supplied metadata (automated record created 2010-03-12 12:08:51). Electronic resource. |
| Physical Description: | 1 online resource. |
| Bibliography: | Includes bibliographical references. |