Scalar non-standard neutrino interactions in Galactic supernovae
Fuente:
arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866911117079478272 |
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| author | Dutta, Bhaskar Karthikeyan, Aparajitha Mishra, Nityasa Porto, Yago Strigari, Louis E. |
| author_facet | Dutta, Bhaskar Karthikeyan, Aparajitha Mishra, Nityasa Porto, Yago Strigari, Louis E. |
| contents | We analyze the prospects for studying scalar non-standard interactions (SNSI) using the neutrino burst from a Galactic supernova. SNSI modify the resonant flavor conversion and, correspondingly, the neutronization burst signal, and may be identifiable in future multi-tonne-scale experiments such as DUNE. We show that, in the presence of SNSI, neutrinos propagating out of the dense supernova environment acquire a density-squared-dependent contribution to their mass-squared differences, which in turn modifies the energy levels of the neutrino mass eigenstates. This phenomenon is not present in less dense environments like the Earth or the Sun. For a given mass ordering, supernova neutrinos can improve the sensitivity to SNSI parameters by up to four orders of magnitude compared to that achievable with solar or terrestrial neutrino sources. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_16558 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Scalar non-standard neutrino interactions in Galactic supernovae Dutta, Bhaskar Karthikeyan, Aparajitha Mishra, Nityasa Porto, Yago Strigari, Louis E. High Energy Physics - Phenomenology High Energy Astrophysical Phenomena Solar and Stellar Astrophysics We analyze the prospects for studying scalar non-standard interactions (SNSI) using the neutrino burst from a Galactic supernova. SNSI modify the resonant flavor conversion and, correspondingly, the neutronization burst signal, and may be identifiable in future multi-tonne-scale experiments such as DUNE. We show that, in the presence of SNSI, neutrinos propagating out of the dense supernova environment acquire a density-squared-dependent contribution to their mass-squared differences, which in turn modifies the energy levels of the neutrino mass eigenstates. This phenomenon is not present in less dense environments like the Earth or the Sun. For a given mass ordering, supernova neutrinos can improve the sensitivity to SNSI parameters by up to four orders of magnitude compared to that achievable with solar or terrestrial neutrino sources. |
| title | Scalar non-standard neutrino interactions in Galactic supernovae |
| topic | High Energy Physics - Phenomenology High Energy Astrophysical Phenomena Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2508.16558 |