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Title
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Search for pair production of excited top quarks in the lepton + jets final state
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Author
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Institution/Organisation
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CMS Collaboration
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Abstract
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| A search is performed for pair-produced spin-3/2 excited top quarks , each decaying to a top quark and a gluon. The search uses data collected with the CMS detector from pp collisions at a center-of-mass energy of = 8 TeV, selecting events that have a single isolated muon or electron, an imbalance in transverse momentum, and at least six jets, of which one must be compatible with originating from the fragmentation of a b quark. The data, corresponding to an integrated luminosity of 19.5 fb(-1), show no significant excess over standard model predictions, and provide a lower limit of 803 GeV at 95% confidence on the mass of the spin-3/2 t(*) quark in an extension of the Randall-Sundrum model, assuming a 100% branching fraction of its decay into a top quark and a gluon. This is the first search for a spin-3/2 excited top quark performed at the LHC. |
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Language
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English
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Source (journal)
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Journal of high energy physics. - Bristol
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Publication
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Bristol
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2014
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ISSN
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1126-6708
1029-8479
[online]
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DOI
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10.1007/JHEP06(2014)125
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Volume/pages
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6
(2014)
, 35 p.
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Article Reference
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125
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ISI
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000338448300001
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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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