Heavy neutrinos, Z' and Higgs bosons at the LHC: new particles from an old symmetry

Abstract

A new era in particle physics is being spurred on by new data from the Large Hadron Collider. Non-vanishing neutrino masses represent firm observational evidence of new physics beyond the Standard Model. An extension of the latter, based on a SU(3)_C x SU(2)_L x U(1)_Y x U(1)_{B-L} symmetry, incorporating an established Baryon minus Lepton number invariance, is proposed as a viable and testable solution to the neutrino mass problem. We argue that LHC data will probe all the new content of this model: heavy neutrinos, an extra gauge boson emerging from spontaneous breaking of the additional gauge group at the TeV scale, onset by a new heavier Higgs boson, also visible at the CERN proton-proton collider. An even more exciting version of this model is the one exploiting Supersymmetry: firstly, it incorporates all its well known benefits; secondly, it alleviates the flaws of its more minimal realisations. Finally, this model provides a credible cold Dark Matter candidate, the lightest sneutrino, detectable in both underground and collider experiments.

References in corpus (7)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Low scale B-L extension of the Standard Model at the LHC
• Testability of Type I Seesaw at the CERN LHC: Revealing the Existence of the B-L Symmetry
• Radiative B-L symmetry breaking in supersymmetric models
• Signatures for right-handed neutrinos at the Large Hadron Collider
• Higgs phenomenology in the minimal $B-L$ extension of the Standard Model at LHC

Cited by in corpus (14)

• Exploring new models in all detail with SARAH
• Naturalness and Dark Matter in the BLSSM
• Mono-jet, -photon and -Z Signals of a Supersymmetric (B-L) model at the Large Hadron Collider
• Search for Mono-Higgs Signals at the LHC in the B-L Supersymmetric Standard Model
• Right-handed sneutrino-antisneutrino oscillations in a TeV scale Supersymmetric B-L model
• Double Higgs peak in the minimal SUSY B-L model
• $h\to \gamma \gamma$ in $U(1{)}_R-$ lepton number model with a right-handed neutrino
• The Dark $Z^{\prime }$ and Sterile Neutrinos Behind Current Anomalies
• Light sfermion interplay in the 125 GeV MSSM Higgs production and decay at the LHC
• Dark Matter in B-L Supersymmetric Standard Model with Inverse Seesaw
• Search for a light $Z^{\prime }$ at LHC in a neutrinophilic $U(1)$ model
• Light Chargino Effects onto H -> gamma gamma in the MSSM
• Long-Lived BLSSM Particles at the LHC
• Searching for Charged Higgs Bosons in the $B-L$ Supersymmetric Standard Model at the High Luminosity Large Hadron Collider