Search for W ' -> tb decays in the lepton plus jets final state in pp collisions at root s=8 TeV
Abstract
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.
Autore Pugliese
Tutti gli autori
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POMPILI A.;MARANGELLI B.;CALABRIA C.;SELVAGGI G.;SINGH G.;BARBONE L.;ABBRESCIA M.;DE PALMA M.;RADOGNA R.;VENDITTI R.;MY S.;NUZZO S.V.;CHHIBRA S.S
Titolo volume/Rivista
Non Disponibile
Anno di pubblicazione
2014
ISSN
1029-8479
ISBN
Non Disponibile
Numero di citazioni Wos
15
Ultimo Aggiornamento Citazioni
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Numero di citazioni Scopus
31
Ultimo Aggiornamento Citazioni
Non Disponibile
Settori ERC
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Codici ASJC
Non Disponibile
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