Search for Light Dark Matter in Rare Meson Decays
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
| Veröffentlicht: |
2025
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| _version_ | 1866909979623030784 |
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| author | Liu, Ze-Kun Li, Ying Hou, Biao-Feng Chang, Qin |
| author_facet | Liu, Ze-Kun Li, Ying Hou, Biao-Feng Chang, Qin |
| contents | Current dark matter direct detection experiments have low sensitivity to sub-GeV dark matter. In this work, we demonstrate that rare $B$ and $K$ meson decays with missing energy in the final state can serve as efficient probes in this mass range. We analyze a generic $Z^{\prime}$ portal dark matter model and derive upper limits on its parameters from experimental bounds on the rare $B$ and $K$ meson decays. Our results show that such meson decay processes provide complementary constraints to current direct detection experiments for sub-GeV dark matter, particularly for interaction forms mediated by dark matter momentum-dependent operators. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_21191 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Search for Light Dark Matter in Rare Meson Decays Liu, Ze-Kun Li, Ying Hou, Biao-Feng Chang, Qin High Energy Physics - Phenomenology Current dark matter direct detection experiments have low sensitivity to sub-GeV dark matter. In this work, we demonstrate that rare $B$ and $K$ meson decays with missing energy in the final state can serve as efficient probes in this mass range. We analyze a generic $Z^{\prime}$ portal dark matter model and derive upper limits on its parameters from experimental bounds on the rare $B$ and $K$ meson decays. Our results show that such meson decay processes provide complementary constraints to current direct detection experiments for sub-GeV dark matter, particularly for interaction forms mediated by dark matter momentum-dependent operators. |
| title | Search for Light Dark Matter in Rare Meson Decays |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2512.21191 |