Heavy Neutral Lepton Decay Searches using Solar Neutrinos
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arXiv
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| Hauptverfasser: | , |
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| Format: | Preprint |
| Veröffentlicht: |
2025
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| _version_ | 1866908393507127296 |
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| author | Huber, Patrick Li, Yulun |
| author_facet | Huber, Patrick Li, Yulun |
| contents | We study the sensitivity to the decay of a heavy neutral lepton into $e^+e^-$-pairs using the solar boron-8 neutrino flux as source. We provide a fully differential cross section for this process including the interference of neutral and charged current amplitudes. We revisit a previous bound from Borexino and make predicitions for the expected sensitivity in future large liquid noble gas detectors, like XLZD, Argo and DUNE, as well as high-resolution scintillator detectors based on the LiquidO technology. We find that more than two orders of magnitude improvement in mixing angle reach is possible relative to existing bounds. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_04099 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Heavy Neutral Lepton Decay Searches using Solar Neutrinos Huber, Patrick Li, Yulun High Energy Physics - Phenomenology We study the sensitivity to the decay of a heavy neutral lepton into $e^+e^-$-pairs using the solar boron-8 neutrino flux as source. We provide a fully differential cross section for this process including the interference of neutral and charged current amplitudes. We revisit a previous bound from Borexino and make predicitions for the expected sensitivity in future large liquid noble gas detectors, like XLZD, Argo and DUNE, as well as high-resolution scintillator detectors based on the LiquidO technology. We find that more than two orders of magnitude improvement in mixing angle reach is possible relative to existing bounds. |
| title | Heavy Neutral Lepton Decay Searches using Solar Neutrinos |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2506.04099 |