Search for heavy neutrinos and W bosons with right-handed couplings in proton-proton collisions at sqrt(s) = 8 TeV

Abstract

A search for heavy, right-handed neutrinos, N[l] (l = e, mu), and right-handed WR bosons, which arise in the left-right symmetric extensions of the standard model, has been performed by the CMS experiment. The search was based on a sample of two lepton plus two jet events collected in proton-proton collisions at a center-of-mass energy of 8 TeV corresponding to an integrated luminosity of 19.7 inverse femtobarns. For models with strict left-right symmetry, and assuming only one N[l] flavor contributes significantly to the WR decay width, the region in the two-dimensional (M[WR], M[N]) mass plane excluded at a 95% confidence level extends to approximately M[WR] = 3.0 TeV and covers a large range of neutrino masses below the WR boson mass, depending on the value of M[WR]. This search significantly extends the (M[WR], M[N]) exclusion region beyond previous results.

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References in corpus (21)

• PYTHIA 6.4 Physics and Manual
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• Matching NLO QCD computations with Parton Shower simulations: the POWHEG method
• New parton distributions for collider physics
• Event generation with SHERPA 1.1
• Pileup subtraction using jet areas
• Vector boson pair production at the LHC
• Single-top Wt-channel production matched with parton showers using the POWHEG method
• The Catchment Area of Jets
• Performance of CMS muon reconstruction in pp collision events at sqrt(s) = 7 TeV
• FEWZ 2.0: A code for hadronic Z production at next-to-next-to-leading order
• The PDF4LHC Working Group Interim Recommendations
• The PDF4LHC Working Group Interim Report
• Pileup subtraction for jet shapes
• The RooStats Project
• Search for heavy neutrinos and right-handed W bosons in events with two leptons and jets in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
• Search for heavy narrow dilepton resonances in pp collisions at sqrt(s) = 7 TeV and sqrt(s) = 8 TeV
• Search for narrow resonances in dilepton mass spectra in pp collisions at sqrt(s) = 7 TeV
• Search for heavy neutrinos and W[R] bosons with right-handed couplings in a left-right symmetric model in pp collisions at sqrt(s) = 7 TeV
• Search for tb resonances in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector
• Differential and total cross sections for top pair and single top production

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