Insights on the Cosmic Origin of Matter from Proton Stability
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| Format: | Preprint |
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2025
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| _version_ | 1866909904857464832 |
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| author | Greljo, Admir Díaz, Xavier Ponce Thomsen, Anders Eller |
| author_facet | Greljo, Admir Díaz, Xavier Ponce Thomsen, Anders Eller |
| contents | We investigate the phenomenology of a model in which the proton is rendered absolutely stable by an IR mechanism that remains robust against unknown quantum gravity effects. A linear combination of baryon number and lepton flavors is gauged and spontaneously broken to a residual $\mathbb{Z}_9$ discrete gauge symmetry enforcing a strict selection rule: $ΔB = 0\,(\mathrm{mod}\,3)$. Despite its minimal field content, the model successfully accounts for established empirical evidence of physics beyond the SM. High-scale symmetry breaking simultaneously provides a seesaw mechanism explaining the smallness of neutrino masses, minimal thermal leptogenesis, and a viable phenomenology of the majoron as dark matter. Any cosmic string-wall network remaining after inflation is unstable for numerous charge assignments. Lepton flavor non-universality, central to the construction, leads to predictive neutrino textures testable via oscillation experiments, neutrinoless double beta decay, and cosmology. The model motivates searches in $X$- and $γ$-ray lines, neutrino telescopes, and predicts CMB imprints. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2505_18259 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Insights on the Cosmic Origin of Matter from Proton Stability Greljo, Admir Díaz, Xavier Ponce Thomsen, Anders Eller High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics High Energy Physics - Experiment High Energy Physics - Theory We investigate the phenomenology of a model in which the proton is rendered absolutely stable by an IR mechanism that remains robust against unknown quantum gravity effects. A linear combination of baryon number and lepton flavors is gauged and spontaneously broken to a residual $\mathbb{Z}_9$ discrete gauge symmetry enforcing a strict selection rule: $ΔB = 0\,(\mathrm{mod}\,3)$. Despite its minimal field content, the model successfully accounts for established empirical evidence of physics beyond the SM. High-scale symmetry breaking simultaneously provides a seesaw mechanism explaining the smallness of neutrino masses, minimal thermal leptogenesis, and a viable phenomenology of the majoron as dark matter. Any cosmic string-wall network remaining after inflation is unstable for numerous charge assignments. Lepton flavor non-universality, central to the construction, leads to predictive neutrino textures testable via oscillation experiments, neutrinoless double beta decay, and cosmology. The model motivates searches in $X$- and $γ$-ray lines, neutrino telescopes, and predicts CMB imprints. |
| title | Insights on the Cosmic Origin of Matter from Proton Stability |
| topic | High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics High Energy Physics - Experiment High Energy Physics - Theory |
| url | https://arxiv.org/abs/2505.18259 |