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Corcoran, Marjorie D. Mackin, Dennis S., Jr 2011-07-25T02:07:37Z 2011-07-25T02:07:37Z 2010 Mackin, Dennis S., Jr. "A search for the lightest supersymmetric partner of the top quark at DO." (2010) Diss., Rice University. <a href="https://hdl.handle.net/1911/62217">https://hdl.handle.net/1911/62217</a>. https://hdl.handle.net/1911/62217 THESIS PHYS. 2011 MACKIN We report the result of a search for the pair production of the light supersymmetric partner of the top quark (t˜1) in 5.4+/-0.3 fb-1 of data from the DO detector at a pp¯ center-of-mass energy of 1.96 TeV at the Fermilab Tevatron collider. The scalar top quarks are assumed to decay into a b quark, a charged lepton and a scalar neutrino ( n&d5; ), and the search is performed in the electron plus muon final state. No significant excess of events above the standard model prediction is detected and new exclusion limits at the 95% C.L. are set for a portion of the ( mt&d5;1,m n&d5; ) mass plane. application/pdf eng Copyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder. Particle physics Elementary particles High energy physics A search for the lightest supersymmetric partner of the top quark at DO Thesis Text Physics Natural Sciences Rice University Doctoral Doctor of Philosophy open.access