Search for W′ → tb in proton-proton collisions at √s = 8 TeV

The CMS collaboration

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Abstract: A search is performed for the production of a massive W′ boson decaying to a top and a bottom quark. The data analysed correspond to an integrated luminosity of 19.7 fb−1 collected with the CMS detector at the LHC in proton-proton collisions at (Formula presented.) TeV. The hadronic decay products of the top quark with high Lorentz boost from the W′ boson decay are detected as a single top flavoured jet. The use of jet substructure algorithms allows the top quark jet to be distinguished from standard model QCD background. Limits on the production cross section of a right-handed W′ boson are obtained, together with constraints on the left-handed and right-handed couplings of the W′ boson to quarks. The production of a right-handed W′ boson with a mass below 2.02 TeV decaying to a hadronic final state is excluded at 95% confidence level. This mass limit increases to 2.15 TeV when both hadronic and leptonic decays are considered, and is the most stringent lower mass limit to date in the tb decay mode.[Figure not available: see fulltext.]

Original languageEnglish
Article number122
Pages (from-to)1-42
Number of pages42
JournalJournal of High Energy Physics
Volume2016
Issue number2
DOIs
Publication statusPublished - 1 Feb 2016

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bosons
collisions
protons
quarks
decay
acceleration (physics)
substructures
confidence
quantum chromodynamics
luminosity
detectors
cross sections
products

Keywords

  • Beyond Standard Model
  • Hadron-Hadron scattering
  • Jet substructure

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Search for W′ → tb in proton-proton collisions at √s = 8 TeV. / The CMS collaboration.

In: Journal of High Energy Physics, Vol. 2016, No. 2, 122, 01.02.2016, p. 1-42.

Research output: Contribution to journalArticle

The CMS collaboration. / Search for W′ → tb in proton-proton collisions at √s = 8 TeV. In: Journal of High Energy Physics. 2016 ; Vol. 2016, No. 2. pp. 1-42.
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AB - Abstract: A search is performed for the production of a massive W′ boson decaying to a top and a bottom quark. The data analysed correspond to an integrated luminosity of 19.7 fb−1 collected with the CMS detector at the LHC in proton-proton collisions at (Formula presented.) TeV. The hadronic decay products of the top quark with high Lorentz boost from the W′ boson decay are detected as a single top flavoured jet. The use of jet substructure algorithms allows the top quark jet to be distinguished from standard model QCD background. Limits on the production cross section of a right-handed W′ boson are obtained, together with constraints on the left-handed and right-handed couplings of the W′ boson to quarks. The production of a right-handed W′ boson with a mass below 2.02 TeV decaying to a hadronic final state is excluded at 95% confidence level. This mass limit increases to 2.15 TeV when both hadronic and leptonic decays are considered, and is the most stringent lower mass limit to date in the tb decay mode.[Figure not available: see fulltext.]

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