$ν$ limits from Super-Kamiokande on dark matter-electron scattering in the Sun
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arXiv
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| Autori principali: | , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866915202834890752 |
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| author | Krishna, Dhashin Sherpa, Rinchen Saha, Akash Kumar Maity, Tarak Nath Laha, Ranjan Raj, Nirmal |
| author_facet | Krishna, Dhashin Sherpa, Rinchen Saha, Akash Kumar Maity, Tarak Nath Laha, Ranjan Raj, Nirmal |
| contents | Particle dark matter scattering on electrons in the Sun may gravitationally capture and self-annihilate inside it to neutrinos and anti-neutrinos, or other final states that in turn decay to them. Using up-to-date measurements by Super-Kamiokande of the fluxes of atmospheric electron-type and muon-type neutrinos, we set the most stringent limits on the electron scattering cross sections of dark matter down to about $10^{-40}-10^{-39}$ cm$^2$ over a mass range of 4$-$200 GeV. These outdo direct searches for dark matter-electron scattering and previously set limits at IceCube. We also derive corresponding reaches at Hyper-K, and show that atmospheric neutrino observations restricted to the direction of the Sun can improve sensitivities. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_07713 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | $ν$ limits from Super-Kamiokande on dark matter-electron scattering in the Sun Krishna, Dhashin Sherpa, Rinchen Saha, Akash Kumar Maity, Tarak Nath Laha, Ranjan Raj, Nirmal High Energy Physics - Phenomenology High Energy Astrophysical Phenomena High Energy Physics - Experiment Particle dark matter scattering on electrons in the Sun may gravitationally capture and self-annihilate inside it to neutrinos and anti-neutrinos, or other final states that in turn decay to them. Using up-to-date measurements by Super-Kamiokande of the fluxes of atmospheric electron-type and muon-type neutrinos, we set the most stringent limits on the electron scattering cross sections of dark matter down to about $10^{-40}-10^{-39}$ cm$^2$ over a mass range of 4$-$200 GeV. These outdo direct searches for dark matter-electron scattering and previously set limits at IceCube. We also derive corresponding reaches at Hyper-K, and show that atmospheric neutrino observations restricted to the direction of the Sun can improve sensitivities. |
| title | $ν$ limits from Super-Kamiokande on dark matter-electron scattering in the Sun |
| topic | High Energy Physics - Phenomenology High Energy Astrophysical Phenomena High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2503.07713 |