Asymmetric dark matter from semi-annihilation: unitarity constraints and long-lived final states
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866917986557755392 |
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| author | Blažek, Tomáš Maták, Peter Zaujec, Viktor |
| author_facet | Blažek, Tomáš Maták, Peter Zaujec, Viktor |
| contents | This work presents an asymmetric dark matter model with relic density determined by the freeze-out of asymmetric semi-annihilations into long-lived particles slowly decaying into the Standard Model states. We carefully consider the $CPT$ symmetry and unitarity constraints to the asymmetries entering the Boltzmann equation. The main idea of the paper is to point out a critical inconsistency in the previous literature, where these constraints are violated. We present a systematic approach to avoid the inconsistency. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_01470 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Asymmetric dark matter from semi-annihilation: unitarity constraints and long-lived final states Blažek, Tomáš Maták, Peter Zaujec, Viktor High Energy Physics - Phenomenology This work presents an asymmetric dark matter model with relic density determined by the freeze-out of asymmetric semi-annihilations into long-lived particles slowly decaying into the Standard Model states. We carefully consider the $CPT$ symmetry and unitarity constraints to the asymmetries entering the Boltzmann equation. The main idea of the paper is to point out a critical inconsistency in the previous literature, where these constraints are violated. We present a systematic approach to avoid the inconsistency. |
| title | Asymmetric dark matter from semi-annihilation: unitarity constraints and long-lived final states |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2412.01470 |