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Title
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Search for W ' tb decays in the lepton + jets final state in pp collisions at = 8 TeV
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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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| Results are presented from a search for the production of a heavy gauge boson W' decaying into a top and a bottom quark, using a data set collected by the CMS experiment at root s = 8 TeV and corresponding to an integrated luminosity of 19.5 fb(-1). Various models of W'-boson production are studied by allowing for an arbitrary combination of left-and right-handed couplings. The analysis is based on the detection of events with a lepton (e, mu), jets, and missing transverse energy in the final state. No evidence for W'-boson production is found and 95% confidence level upper limits on the production cross section times branching fraction are obtained. For W' bosons with purely right-handed couplings, and for those with left-handed couplings assuming no interference effects, the observed 95% confidence level limit is M(W') > 2.05TeV. For W' bosons with purely left-handed couplings, including interference effects, the observed 95% confidence level limit is M(W') > 1.84 TeV. The results presented in this paper are the most stringent limits published to date. |
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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/JHEP05(2014)108
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Volume/pages
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5
(2014)
, 35 p.
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ISI
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000338207600001
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Full text (Publisher's DOI)
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Full text (open access)
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