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hep-ph2026
Axion-driven spontaneous leptogenesis, precisely
Konstantin Kuckenberg, Martin A. Mojahed, Kai Schmitz +1
We revisit a minimal scenario for spontaneous leptogenesis where the asymmetry generation is driven by a heavy axion-like field evolving via standard misalignment. We focus on the…
hep-ph2024
Thermal Wash-in Leptogenesis via Heavy Higgs Decay
Kyohei Mukaida, Hidenaga Watanabe, Masaki Yamada
We present a conceptually simple model to generate asymmetries that are not directly related to baryon nor lepton charges. The model employs a three-Higgs doublet framework, wherei…