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Search for the Pair Production of Scalar Top Quarks in the Acoplanar Charm Jet Topology in ppbar Collisions at sqrt(s)=1.96 TeV
Stockholm University, Faculty of Science, Department of Physics.
Stockholm University, Faculty of Science, Department of Physics.
Stockholm University, Faculty of Science, Department of Physics.
2007 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 645, no 2-3, 119-127 p.Article in journal (Refereed) Published
Abstract [en]

A search for the pair production of scalar top quarks, (t) over tilde, has been performed in 360 pb(-1) of data from pp collisions at a center-of-mass energy of 1.96 TeV, collected by the D phi detector at the Fermilab Tevatron collider. The (t) over tilde decay mode considered is (t) over tilde -> c (chi) over tilde (0)(1), where (chi) over tilde (0)(1) is the lightest supersymmetric particle. The topology analyzed therefore consists of a pair of acoplanar heavy-flavor jets with missing transverse energy. The data and standard model expectation are in agreement, anda 95% C.L. exclusion domain in the (m((t) over tilde), m((chi) over tilde1)(0)) plane has been determined, extending the domain excluded by previous experiments.

Place, publisher, year, edition, pages
2007. Vol. 645, no 2-3, 119-127 p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:su:diva-12396DOI: 10.1016/j.physletb.2006.12.024ISI: 000244313500004OAI: oai:DiVA.org:su-12396DiVA: diva2:178916
Note
D0 Collaboration: V authorCount :579Available from: 2008-01-15 Created: 2008-01-15 Last updated: 2017-12-13Bibliographically approved

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Åsman, BarbroClément, ChristopheStrandberg, Sara
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