A new B-L model without right-handed neutrinos

Abstract

We propose and study a novel extension of the Standard Model based on the B-L gauge symmetry that can account for dark matter and neutrino masses. In this model, right-handed neutrinos are absent and the gauge anomalies are canceled instead by four chiral fermions with fractional B-L charges. After the breaking of $U(1{)}_{B-L}$, these fermions arrange themselves into two Dirac particles, the lightest of which is automatically stable and plays the role of the dark matter. We determine the regions of the parameter space consistent with the observed dark matter density and show that they can be partially probed via direct and indirect dark matter detection or collider searches at the LHC. Neutrino masses, on the other hand, can be explained by a variant of the type-II seesaw mechanism involving one of the two scalar fields responsible for the dark matter mass.

23 pages, 10 figures

References in corpus (13)

• Dark Matter Results from 225 Live Days of XENON100 Data
• Combined Measurement of the Higgs Boson Mass in $pp$ Collisions at $\sqrt{s}=7$ and 8 TeV with the ATLAS and CMS Experiments
• Precise determination of the mass of the Higgs boson and tests of compatibility of its couplings with the standard model predictions using proton collisions at 7 and 8 TeV
• Search for high-mass dilepton resonances in pp collisions at sqrt(s) = 8 TeV with the ATLAS detector
• The Minimal Set of Electroweak Precision Parameters
• Low scale B-L extension of the Standard Model at the LHC
• Gauging U(1) symmetries and the number of right-handed neutrinos
• Neutrino Mass and Dark Matter from Gauged $U(1{)}_{B-L}$ Breaking
• LanHEP - a package for automatic generation of Feynman rules from the Lagrangian. Updated version 3.1
• Complex Scalar DM in a B-L Model
• Mini--Review of Dark Matter: 2012
• Number-Theory Dark Matter
• Natural $Z^{\prime }$ model with an inverse seesaw and leptonic dark matter

Cited by in corpus (8)

• Common Origin of Neutrino Mass and Dark Matter from Anomaly Cancellation Requirements of a $U(1{)}_{B-L}$ Model
• Calculation of Momentum Distribution Function of a Non-thermal Fermionic Dark Matter
• Freeze-In of radiative keV-scale neutrino dark matter from a new $\text{U}(1{)}_{\text{B-L}}$
• Models of decaying FIMP Dark Matter: potential links with the Neutrino Sector
• Particle temperature and the Chiral Vortical Effect in the early universe
• Scotoseesaw mechanism from a $Z_3$ symmetry of matter
• Probing Leptophobic Dark Sectors via Gravitational Wave Signatures
• Probing mixed-state dark matter and flavor observables in a scalar-assisted baryonic gauge theory