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Search for the lightest scalar top quark in events with two leptons in p(p)over-bar collisions at root s=1.96 TeV
Stockholm University, Faculty of Science, Department of Physics. (Elementarpartikelfysik)
Stockholm University, Faculty of Science, Department of Physics. (Elementarpartikelfysik)
2009 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 675, no 3-4, 289-296 p.Article in journal (Refereed) Published
Abstract [en]

We report results of a search for the pair production of the lightest supersymmetric partner of the top quark, (t) over bar (1), using a data set corresponding to an integrated luminosity of 1 fb(-1) collected by the D circle divide detector at a p (p) over bar center-of-mass energy of 1.96 TeV at the Fermilab Tevatron collider. Both scalar top quarks are assumed to decay into a b quark, a charged lepton and a scalar neutrino. The search is performed in the electron Plus muon and dielectron final states. The signal topology consists of two isolated leptons, missing transverse energy, and jets. We find no evidence for this process and exclude regions of parameter space in the framework of the minimal supersymmetric standard model.

Place, publisher, year, edition, pages
2009. Vol. 675, no 3-4, 289-296 p.
Keyword [en]
PARTICLE PHYSICS, SUPERSYMMETRY
National Category
Subatomic Physics
Research subject
Physics
Identifiers
URN: urn:nbn:se:su:diva-33067DOI: 10.1016/j.physletb.2009.04.039ISI: 000266369300004OAI: oai:DiVA.org:su-33067DiVA: diva2:282301
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Note

Publikationen har totalt 509 författare, V. Abazov et al.

Available from: 2009-12-18 Created: 2009-12-18 Last updated: 2017-12-12Bibliographically approved

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