Constraining anti-baryonic dark matter through correlated nucleon decay signatures
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866911183288664064 |
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| author | Arun, Mathew Thomas Khadse, Anuja Bandu |
| author_facet | Arun, Mathew Thomas Khadse, Anuja Bandu |
| contents | Baryon number violation in the visible sector induced by anti-baryonic dark matter provides a viable mechanism for low-scale baryogenesis. Two of the most sensitive probes of this scenario are neutron decay processes such as $n \to \barν + \text{invisible}$ and $n \to π^0 + \text{invisible}$. In this work, we discuss the possible spontaneous breaking of baryon symmetry in the dark sector and the generation of di-nucleon decay processes such as $nn \to \barν\barν$ and $nn \to π^0π^0$ at one-loop, arising from the operators responsible for induced nucleon decays. While the induced nucleon decay rates in this model depend on the dark matter density, di-nucleon decay processes do not, providing a complementary probe of the new physics. We thus use nucleon and di-nucleon decay bounds to constrain the local density and mass of the anti-baryonic dark matter. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2505_16641 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Constraining anti-baryonic dark matter through correlated nucleon decay signatures Arun, Mathew Thomas Khadse, Anuja Bandu High Energy Physics - Phenomenology Baryon number violation in the visible sector induced by anti-baryonic dark matter provides a viable mechanism for low-scale baryogenesis. Two of the most sensitive probes of this scenario are neutron decay processes such as $n \to \barν + \text{invisible}$ and $n \to π^0 + \text{invisible}$. In this work, we discuss the possible spontaneous breaking of baryon symmetry in the dark sector and the generation of di-nucleon decay processes such as $nn \to \barν\barν$ and $nn \to π^0π^0$ at one-loop, arising from the operators responsible for induced nucleon decays. While the induced nucleon decay rates in this model depend on the dark matter density, di-nucleon decay processes do not, providing a complementary probe of the new physics. We thus use nucleon and di-nucleon decay bounds to constrain the local density and mass of the anti-baryonic dark matter. |
| title | Constraining anti-baryonic dark matter through correlated nucleon decay signatures |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2505.16641 |