Title
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Search for new bottomlike quark pair decays in same-charge dilepton events
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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 report the most restrictive direct limits on masses of fourth-generation down-type quarks b′, and quarklike composite fermions (B or T5/3), decaying promptly to tW∓. We search for a significant excess of events with two same-charge leptons (e, μ), several hadronic jets, and missing transverse energy. An analysis of data from pp̅ collisions with an integrated luminosity of 2.7 fb-1 collected with the CDF II detector at Fermilab yields no evidence for such a signal, setting mass limits mb′, mB>338 GeV/c2 and mT5/3>365 GeV/c2 at 95% confidence level. |
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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.
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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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Volume/pages
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104
:9
(2010)
, p. 091801,1-091801,8
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Article Reference
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091801
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ISI
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000275252500010
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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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