Search for W' $\to $ tb decays in the lepton + jets final state in pp collisions at $\sqrt{s}$ = 8 TeV

Chatrchyan, Serguei

doi:10.1007/JHEP05(2014)108

Title: Search for W' $$\to $$ tb decays in the lepton + jets final state in pp collisions at $$\sqrt{s}$$ = 8 TeV

Journal Article · Fri May 23 00:00:00 EDT 2014 · Journal of High Energy Physics (Online)

DOI:https://doi.org/10.1007/JHEP05(2014)108· OSTI ID:1151724

Chatrchyan, Serguei ^[1]

et al.

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 sqrt(s) = 8 TeV and corresponding to an integrated luminosity of 19.5 inverse femtobarns. 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') > 2.05 TeV. 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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Research Organization:: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Contributing Organization:: CMS Collaboration

Grant/Contract Number:: AC02-07CH11359

OSTI ID:: 1151724

Report Number(s):: FERMILAB-PUB-14-078-CMS; CERN-PH-EP-2014-011; CMS-B2G-12-010; arXiv eprint number arXiv:1402.2176

Journal Information:: Journal of High Energy Physics (Online), Vol. 2014, Issue 6; ISSN 1029-8479

Publisher:: Springer BerlinCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 22 works

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