Baryon and lepton number intricacies in axion models
arXiv:2006.06778 · doi:10.1103/PhysRevD.102.075031
Abstract
Because the Peccei-Quinn (PQ) symmetry has to be anomalous to solve the strong CP puzzle, some colored and chiral fermions have to transform non-trivially under this symmetry. But when the SM fermions are charged, as in the PQ or DFSZ models, this symmetry ends up entangled with the SM global symmetries, baryon (B) and lepton (L) numbers. This raises several questions addressed in this paper. First, the compatibility of axion models with some explicit B and/or L violating effects is analyzed, including those arising from seesaw mechanisms, electroweak instanton interactions, or explicit B and L violating effective operators. Second, how many of these effects can be simultaneously present is quantified, along with the consequences for the axion mass and vacuum alignment if too many of them are introduced. Finally, large classes of B and/or L violating interactions without impact on axion phenomenology are identified, like for example the various implementations of the type I and II seesaw mechanisms in the DFSZ context.
arXiv comment23 pages, 2 figures
References in corpus (19)
- Measurement of the permanent electric dipole moment of the neutron
- Planck-Scale Physics and the Peccei-Quinn Mechanism
- Solutions to the strong CP problem in a world with gravity
- Standard Model-Axion-Seesaw-Higgs Portal Inflation. Five problems of particle physics and cosmology solved in one stroke
- Axiogenesis
- The Majoron at two loops
- DFSZ: a technically natural non-supersymmetric model of neutrino masses, baryogenesis, the strong CP problem, and dark matter
- Massive neutrinos and invisible axion minimally connected
- Axions are blind to anomalies
- Conformal Standard Model with an extended scalar sector
- Dirac neutrinos from Peccei-Quinn symmetry: a fresh look at the axion
- Dirac neutrino from the breaking of Peccei-Quinn symmetry
- Peccei-Quinn symmetry for Dirac seesaw and leptogenesis
- Ma-xion: Majoron as QCD axion in a radiative seesaw model
- Proton stability from a fourth family
- Minimal Models for Axion and Neutrino
- Neutrino Masses and the Gluino Axion Model
- Neutrino Mixing and the Axion-Gluon Vertex
- EDM with and beyond flavor invariants
Cited by in corpus (7)
- The Anomalous Case of Axion EFTs and Massive Chiral Gauge Fields
- Axion-like ALPs
- Axion Effective Action
- Leptoquarks, axions and the unification of B, L, and Peccei-Quinn symmetries
- Baryon number non-conservation as Peccei-Quinn mechanism
- Axion-Neutrino Interplay in a Gauged Two-Higgs-Doublet Model
- One-loop proton decay from Peccei-Quinn symmetry