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Title
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Search for pair production of supersymmetric top quarks in dilepton events from collisions at =1.96 TeV
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Author
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Institution/Organisation
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CDF Collaboration
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Abstract
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| We present the results of a search for pair production of the supersymmetric partner of the top quark (the top squark t1) decaying to a b quark and a chargino χ1± with a subsequent χ1± decay into a neutralino χ10, lepton ℓ, and neutrino ν. Using a data sample corresponding to 2.7 fb-1 of integrated luminosity of pp̅ collisions at √s=1.96 TeV collected by the CDF II detector, we reconstruct the mass of top squark candidate events and fit the observed mass spectrum to a combination of standard model processes and t1t̅ 1 signal. We find no evidence for t1t̅ 1 production and set 95% C.L. limits on the masses of the top squark and the neutralino for several values of the chargino mass and the branching ratio B(χ1±→χ10ℓ±ν). |
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Language
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English
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Source (journal)
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Physical review letters. - New York, N.Y., 1958, currens
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Publication
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New York, N.Y.
:
American Physical Society
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2010
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ISSN
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0031-9007
[print]
1079-7114
[online]
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DOI
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10.1103/PHYSREVLETT.104.251801
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Volume/pages
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104
:25
(2010)
, p. 251801,1-251801,8
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Article Reference
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251801
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ISI
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000279174500001
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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Full text (open access)
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