The Many Guises of a Neutral Fermion Singlet

Abstract

The addition of a neutral fermion singlet to the standard model of particle interactions leads to many diverse possibilities. It is not necessarily a right-handed neutrino. I discuss many of the simplest and most interesting scenarios of possible new physics with this approach. In particular I propose the possible spontaneous breaking of baryon number, resulting in the massless 'sakharon'.

13 pages, 2 figures, submitted as a Brief Review to MPLA

References in corpus (10)

• 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
• Leptogenesis
• Search for high-mass dilepton resonances in pp collisions at sqrt(s) = 8 TeV with the ATLAS detector
• Pathways to Naturally Small Dirac Neutrino Masses
• Derivation of Dark Matter Parity from Lepton Parity
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• Unified TeV Scale Picture of Baryogenesis and Dark Matter
• Generalized Gauge U(1) Family Symmetry for Quarks and Leptons
• Connecting Radiative Neutrino Mass, Neutron-Antineutron Oscillation, Proton Decay, and Leptogenesis through Dark Matter

Cited by in corpus (8)

• Light Dark Sectors through the Fermion Portal
• Exotic Sterile Neutrinos and Pseudo-Goldstone Phenomenology
• Linkage of Dirac Neutrinos to Dark U(1) Gauge Symmetry
• Gauge Baryon Number and Dibaryonic Dark Matter
• Gauged Lepton Number, Dirac Neutrinos, Dark Matter, and Muon $g-2$
• Radiative Seesaw Dark Matter
• Syndetic Extension of Baryon and Lepton Numbers: Proton Decay and Long-Lived Dark Matter
• Baryon number non-conservation as Peccei-Quinn mechanism