Neutrino Phenomenology and Leptogenesis from Non-Invertible Fusion Symmetry
Abstract
We constructed a minimal type-I seesaw model with two right-handed neutrinos, in which the flavor structure is determined by a non-invertible ℤ2-gauged ℤ5 fusion symmetry~(ℤIN5). The framework, incorporating a second Higgs doublet and an auxiliary ℤ2 parity, yields predictive neutrino mass textures without introducing flavon fields. A fit to neutrino data selects the inverted mass ordering with m3=0 and predicts a nearly maximal Dirac CP phase, together with a characteristic prediction for the effective Majorana mass governing neutrinoless double-beta decay(0νββ). We further investigate thermal leptogenesis and show that the framework can reproduce the observed baryon asymmetry of the Universe. Our results establish a connection between predictive neutrino phenomenology and leptogenesis within a minimal framework based on non-invertible fusion symmetry.
Related
- ℤ3 and S3 gaugings of ℤN×ℤ'N non-invertible symmetries: quark texture zeros and phenomenology
- Testable neutrino mass and TeV-scale leptogenesis in a D4 inverse seesaw model
- Thermal Leptogenesis in the Babu-Nandi-Tavartkiladze Model of Neutrino Mass
- Leptogenesis with a GeV-Scale Quasi-Dirac Neutrino
- Mixed leptogenesis sources and low-energy neutrino portals
BibTeX
@misc{borah2026neutrino,
title = {{Neutrino Phenomenology and Leptogenesis from Non-Invertible Fusion Symmetry}},
author = {Pulakesh Borah and Mrinal Kumar Das},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.35587},
eprint = {2610.35587},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.35587},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Neutrino Phenomenology and Leptogenesis from Non-Invertible Fusion Symmetry
AU - Pulakesh Borah
AU - Mrinal Kumar Das
PY - 2026
DA - 2026/10/26
PB - arXiv
DO - 10.48550/arxiv.2610.35587
UR - https://arxiv.org/abs/2610.35587
AB - We constructed a minimal type-I seesaw model with two right-handed neutrinos, in which the flavor structure is determined by a non-invertible ℤ_2-gauged ℤ_5 fusion symmetry~(ℤ^IN_5). The framework, incorporating a second Higgs doublet and an auxiliary ℤ_2 parity, yields predictive neutrino mass textures without introducing flavon fields. A fit to neutrino data selects the inverted mass ordering with m_3=0 and predicts a nearly maximal Dirac CP phase, together with a characteristic prediction for the effective Majorana mass governing neutrinoless double-beta decay(0νββ). We further investigate thermal leptogenesis and show that the framework can reproduce the observed baryon asymmetry of the Universe. Our results establish a connection between predictive neutrino phenomenology and leptogenesis within a minimal framework based on non-invertible fusion symmetry.
ER -