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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2506.05468 |
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| _version_ | 1866913990210224128 |
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| author | Davighi, Joe Moldovsky, Serah Murayama, Hitoshi Scherb, Christiane Selimovic, Nudzeim |
| author_facet | Davighi, Joe Moldovsky, Serah Murayama, Hitoshi Scherb, Christiane Selimovic, Nudzeim |
| contents | We point out that a QCD-like dark sector can be coupled to the Standard Model by gauging the topological Skyrme current, which measures the dark baryon number in the infrared, to give a technically natural model for dark matter. This coupling allows for a semi-annihilation process $χχ\rightarrow χX_μ$, where $X_μ$ is the gauge boson mediator and $χ$ a dark pion field, which plays the dominant role in setting the dark matter relic abundance. The topological interaction is purely $p$-wave and so free from indirect detection constraints. We show that the dark matter pion mass needs to be in the range $10$ MeV $\lesssim m_χ\lesssim$ $1$ TeV; towards the lighter end of this range, there can moreover be significant self-interactions. We discuss prospects for probing this scenario at collider experiments, ranging from the LHC to low-energy $e^+ e^-$ colliders, future Higgs factories, and beam-dump experiments. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_05468 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Topological Freeze-out by Semi-Annihilation Davighi, Joe Moldovsky, Serah Murayama, Hitoshi Scherb, Christiane Selimovic, Nudzeim High Energy Physics - Phenomenology We point out that a QCD-like dark sector can be coupled to the Standard Model by gauging the topological Skyrme current, which measures the dark baryon number in the infrared, to give a technically natural model for dark matter. This coupling allows for a semi-annihilation process $χχ\rightarrow χX_μ$, where $X_μ$ is the gauge boson mediator and $χ$ a dark pion field, which plays the dominant role in setting the dark matter relic abundance. The topological interaction is purely $p$-wave and so free from indirect detection constraints. We show that the dark matter pion mass needs to be in the range $10$ MeV $\lesssim m_χ\lesssim$ $1$ TeV; towards the lighter end of this range, there can moreover be significant self-interactions. We discuss prospects for probing this scenario at collider experiments, ranging from the LHC to low-energy $e^+ e^-$ colliders, future Higgs factories, and beam-dump experiments. |
| title | Topological Freeze-out by Semi-Annihilation |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2506.05468 |