Models of Neutrino Mass with a Low Cutoff Scale

Abstract

In theories with a low quantum gravity scale, global symmetries are expected to be violated, inducing excessive proton decay or large Majorana neutrino masses. The simplest cure is to impose discrete gauge symmetries, which in turn make neutrinos massless. We construct models that employ these gauge symmetries while naturally generating small neutrino masses. Majorana (Dirac) neutrino masses are generated through the breaking of a discrete (continuous) gauge symmetry at low energies, e.g., 2 keV to 1 GeV. The Majorana case predicts ΔN_ν\simeq 1 at BBN, neutrinoless double beta decay with scalar emission, and modifications to the CMB anisotropies from domain walls in the universe as well as providing a possible Dark Energy candidate. For the Dirac case, despite the presence of a new light gauge boson, all laboratory, astrophysical, and cosmological constraints can be avoided.

arXiv comment11 pages, 4 figures

References in corpus (21)

• A Large Mass Hierarchy from a Small Extra Dimension
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• The Hierarchy Problem and New Dimensions at a Millimeter
• New Dimensions at a Millimeter to a Fermi and Superstrings at a TeV
• Out Of This World Supersymmetry Breaking
• Gaugino Mass without Singlets
• Neutrino masses and mixings in non-factorizable geometry
• Hierarchies without Symmetries from Extra Dimensions
• The New Minimal Standard Model
• Particle Physics from Stars
• Note on Discrete Gauge Anomalies
• Red giant bound on the axion-electron coupling reexamined
• Effective number of neutrinos and baryon asymmetry from BBN and WMAP
• CMB Signals of Neutrino Mass Generation
• Domain Walls as Dark Energy
• Hiding relativistic degrees of freedom in the early universe
• Measuring the cosmological background of relativistic particles with WMAP
• Gauged Baryon Parity and Nucleon Stability
• Are Domain Walls ruled out ?
• Late Time Neutrino Masses, the LSND Experiment and the Cosmic Microwave Background
• WMAPping out Neutrino Masses

Cited by in corpus (37)

• Dark Matter and Collider Phenomenology of Universal Extra Dimensions
• Physics at a future Neutrino Factory and super-beam facility
• Muon g-2, Rare Kaon Decays, and Parity Violation from Dark Bosons
• Cosmic neutrino cascades from secret neutrino interactions
• Unified origin of baryons and dark matter
• Anomaly-Free Sets of Fermions
• Observing Dirac neutrinos in the cosmic microwave background
• General solution to the U(1) anomaly equations
• Hints for leptonic CP violation or New Physics?
• Gauge Trimming of Neutrino Masses
• Minimal Mass Matrices for Dirac Neutrinos
• Core-collapse supernovae stymie secret neutrino interactions
• Neutrinoless double-beta decay with massive scalar emission
• Towards Powerful Probes of Neutrino Self-Interactions in Supernovae
• Texture specific mass matrices with Dirac neutrinos and their implications
• Composite Dirac Neutrinos
• TASI 2004 Lectures on the Phenomenology of Extra Dimensions
• Sterile Neutrinos and Global Symmetries
• Mini Z' Burst from Relic Supernova Neutrinos and Late Neutrino Masses
• Chiral Abelian gauge theories with few fermions
• Dirac neutrinos and anomaly-free discrete gauge symmetries
• Probing Late Neutrino Mass Properties with Supernova Neutrinos
• Neutrino mass from a hidden world and its phenomenological implications
• Small neutrino masses due to R-symmetry breaking for a small cosmological constant
• Anomaly-free Abelian gauge symmetries with Dirac scotogenic models
• Electroweak Baryogenesis from Late Neutrino Masses
• Split Fermions Baryogenesis from the Kobayashi-Maskawa Phase
• Constraints on composite Dirac neutrinos from observations of galaxy clusters
• Bulk Majorana mass terms and Dirac neutrinos in Randall Sundrum Model
• Anomaly-free chiral $U(1{)}_D$ and its scotogenic implication
• Anomaly-free Abelian gauge symmetries with Dirac seesaws
• Implications of Neutrino Mass Generation from QCD Confinement
• Observable n - anti-n Oscillations with New Physics at LHC
• Leptonic mixing angle ${\theta }_{13}$ and ruling out of minimal texture for Dirac neutrinos
• Simulating neutrino echoes induced by secret neutrino interactions
• Inverted neutrino mass hierarchies from U(1) symmetries
• Solutions to large B and L breaking in the Randall-Sundrum model