Testing the Origins of Neutrino Mass with Supernova Neutrino Time Delay
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arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866913562069303296 |
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| author | Ge, Shao-Feng Kong, Chui-Fan Smirnov, Alexei Y. |
| author_facet | Ge, Shao-Feng Kong, Chui-Fan Smirnov, Alexei Y. |
| contents | The origin of neutrino masses remains unknown. Both the vacuum mass and the dark mass generated by the neutrino interaction with dark matter (DM) particles or fields can fit the current oscillation data. The dark mass squared is proportional to the DM number density and therefore varies on the galactic scale with much larger values around the Galactic Center. This affects the group velocity and the arrival time delay of core-collapse supernovae (SN) neutrinos. This time delay, especially for the $ν_e$ neutronization peak with a sharp time structure, can be used to distinguish the vacuum and dark neutrino masses. For illustration, we explore the potential of DUNE which is sensitive to $ν_e$. Our simulations show that DUNE can distinguish the two neutrino mass origins at more than $5σ\,$C.L., depending on the observed local value of neutrino mass, the neutrino mass ordering, the DM density profile, and the SN location. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_17352 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Testing the Origins of Neutrino Mass with Supernova Neutrino Time Delay Ge, Shao-Feng Kong, Chui-Fan Smirnov, Alexei Y. High Energy Physics - Phenomenology High Energy Astrophysical Phenomena High Energy Physics - Experiment The origin of neutrino masses remains unknown. Both the vacuum mass and the dark mass generated by the neutrino interaction with dark matter (DM) particles or fields can fit the current oscillation data. The dark mass squared is proportional to the DM number density and therefore varies on the galactic scale with much larger values around the Galactic Center. This affects the group velocity and the arrival time delay of core-collapse supernovae (SN) neutrinos. This time delay, especially for the $ν_e$ neutronization peak with a sharp time structure, can be used to distinguish the vacuum and dark neutrino masses. For illustration, we explore the potential of DUNE which is sensitive to $ν_e$. Our simulations show that DUNE can distinguish the two neutrino mass origins at more than $5σ\,$C.L., depending on the observed local value of neutrino mass, the neutrino mass ordering, the DM density profile, and the SN location. |
| title | Testing the Origins of Neutrino Mass with Supernova Neutrino Time Delay |
| topic | High Energy Physics - Phenomenology High Energy Astrophysical Phenomena High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2404.17352 |