TeV-scale Majorogenesis

Abstract

The Majoron, the Nambu-Goldstone boson of lepton number symmetry, is an interesting candidate for dark matter as it deeply connects the dark matter and neutrino physics. In this paper, we consider the Majoron dark matter as pseudo Nambu-Goldstone boson with TeV-scale mass. The heavy Majoron generally has the large decay constant and tiny Yukawa couplings to light right-handed neutrinos which are required by cosmological and astrophysical observations. That makes it difficult to realize the desired amount of the relic abundance of Majoron dark matter. We consider three improved scenarios for the generation of Majoron, dubbed as Majorogenesis, in the early universe and find in all cases the parameter space compatible with the relic abundance and cosmic-ray constraints.

19 pages, 9 figures, version to appear in JHEP

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Cited by in corpus (8)

• Primordial black hole dark matter from catastrogenesis with unstable pseudo-Goldstone bosons
• Updated Constraints and Future Prospects on Majoron Dark Matter
• Non-thermal Production of PNGB Dark Matter and Inflation
• FIMP Dark Matter from Leptogenesis in Fast Expanding Universe
• How low-scale Trinification sheds light in the flavour hierarchies, neutrino puzzle, dark matter and leptogenesis
• Dark Matter Freeze-In with a Heavy Mediator: Beyond the EFT Approach
• Reconciling Higgs physics and pseudo-Nambu-Goldstone dark matter in the S2HDM using a genetic algorithm
• Neutrino masses, matter-antimatter asymmetry, dark matter, and supermassive black hole formation explained with Majorons