Majorana Neutrinos and Dark Matter from Anomaly Cancellation

Abstract

We discuss a simple theory for neutrino masses where the total lepton number is a local gauge symmetry spontaneously broken below the multi-TeV scale. In this context, the neutrino masses are generated through the canonical seesaw mechanism and a Majorana dark matter candidate is predicted from anomaly cancellation. We discuss in great detail the dark matter annihilation channels and find out the upper bound on the symmetry breaking scale using the cosmological bounds on the relic density. Since in this context the dark matter candidate has suppressed couplings to the Standard Model quarks, one can satisfy the direct detection bounds even if the dark matter mass is close to the electroweak scale. This theory predicts a light pseudo-Nambu-Goldstone boson (the Majoron) associated to the mechanism of neutrino mass. We discuss briefly the properties of the Majoron and the impact of the Big Bang Nucleosynthesis bounds.

arXiv commentv2: a few corrections, new appendix, conclusions unchanged, version to appear in Physical Review D

References in corpus (17)

• Package-X: A Mathematica package for the analytic calculation of one-loop integrals
• Cosmological bounds on pseudo Nambu-Goldstone bosons
• A CMB Search for the Neutrino Mass Mechanism and its Relation to the $H_0$ Tension
• Gauge Theory for Baryon and Lepton Numbers with Leptoquarks
• Improved limits for Higgs-portal dark matter from LHC searches
• Breaking Local Baryon and Lepton Number at the TeV Scale
• Minimal Theory for Lepto-Baryons
• Catching a New Force by the Tail
• The Majoron at two loops
• Dark Matter and Vector-like Leptons From Gauged Lepton Number
• Neutrino-Dark Matter Connections in Gauge Theories
• Leptophilic dark matter from gauged lepton number: Phenomenology and gravitational wave signatures
• Precision CMB constraints on eV-scale bosons coupled to neutrinos
• New Paradigm for Baryon and Lepton Number Violation
• Anatomy of the Electroweak Phase Transition for Dark Sector induced Baryogenesis
• Electroweak phase transition in a model with gauged lepton number
• Low Scale Seesaw with Local Lepton Number

Cited by in corpus (3)

• On Lepton and Baryon Numbers as Local Gauge Symmetries
• On Gauge Theories of Neutrino Masses and Dark Matter
• Gamma Lines and Dark Matter from Anomaly Cancellation