Extra Higgs Boson and $Z^{\prime }$ as Portals to Signatures of Heavy Neutrinos at the LHC

Abstract

In this paper, we discuss the potential of observing heavy neutrino (${\nu }_h$) signatures of a $U(1{)}_{B-L}$ enlarged Standard Model (SM) encompassing three heavy Majorana neutrinos alongside the known light neutrino states at the Large Hadron Collider (LHC). We exploit the theoretical decay via a pair of heavy (non-SM-like) Higgs boson and $Z^{\prime }$ production followed by ${\nu }_h\to l^{\pm }{W}^{\mp (\ast )}$ and ${\nu }_h\to {\nu }_l{Z}^{(\ast )}$ decays, ultimately yielding a $3l+2j+E_T^{\mathrm{miss}}$ signature and, depending upon how boosted the final state objects are, we define different possible selections aimed at improving the signal to background ratio in LHC Run 2 data for a wide range of heavy neutrino masses.

31 pages, 10 figures. arXiv admin note: text overlap with arXiv:1612.05977

References in corpus (14)

• The Minimal Set of Electroweak Precision Parameters
• Sterile neutrino searches at future $e^{-}{e}^{+}$, $pp$, and $e^{-}p$ colliders
• Radiative B-L symmetry breaking in supersymmetric models
• Neutrino Jets from High-Mass $W_R$ Gauge Bosons in TeV-Scale Left-Right Symmetric Models
• The seesaw portal in testable models of neutrino masses
• Bounds on heavy Majorana neutrinos in type-I seesaw and implications for collider searches
• Sterile neutrino searches via displaced vertices at LHCb
• $Z^{\prime }$-portal right-handed neutrino dark matter in the minimal U(1)${}_X$ extended Standard Model
• Search for narrow resonances in dilepton mass spectra in proton-proton collisions at sqrt(s) = 13 TeV and combination with 8 TeV data
• $Z^{\prime }$ discovery potential at the LHC in the minimal $B-L$ extension of the Standard Model
• Novel SM-like Higgs decay into displaced heavy neutrino pairs in U(1)' models
• Collider signatures of sterile neutrinos in models with a gauge-singlet Higgs
• Phenomenology of minimal Z' models: from the LHC to the GUT scale
• Search for $Z^{\prime }$, vacuum (in)stability and hints of high-energy structures

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