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Title

Search for New Bottomlike Quark Pair Decays QQ -> (tW)(tW±) in Same-Charge Dilepton Events

CollaborationWith : Clark, Allan Geoffrey / Garcia Navarro, Jose Enrique / Lister, Alison / Wu, Xin
Published in Physical Review Letters. 2010, vol. 104, no. 09, p. 091801
Abstract 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 pp 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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CDF COLLABORATION. Search for New Bottomlike Quark Pair Decays QQ -> (tW)(tW±) in Same-Charge Dilepton Events. In: Physical Review Letters, 2010, vol. 104, n° 09, p. 091801. https://archive-ouverte.unige.ch/unige:38647

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Deposited on : 2014-07-14

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