http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Search for pair production of scalar top quarks decaying to a [tau] lepton and a [beta] quark in 1.96-tev pp collisions
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.
Title from author supplied metadata (automated record created 2010-03-12 12:08:51).
Doctor of Philosophy Texas A&M University 2008 http://hdl.handle.net/1969.1/ETD-TAMU-2814