The next galactic supernova can uncover mass and couplings of particles decaying to neutrinos
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866914844731506688 |
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| author | Telalovic, Bernanda Fiorillo, Damiano F. G. Martínez-Miravé, Pablo Vitagliano, Edoardo Bustamante, Mauricio |
| author_facet | Telalovic, Bernanda Fiorillo, Damiano F. G. Martínez-Miravé, Pablo Vitagliano, Edoardo Bustamante, Mauricio |
| contents | Many particles predicted by extensions of the Standard Model feature interactions with neutrinos, e.g., Majoron-like bosons $ϕ$. If the mass of $ϕ$ is larger than about 10 keV, they can be produced abundantly in the core of the next galactic core-collapse supernova through neutrino coalescence, and leave it with energies of around 100 MeV. Their subsequent decay to high-energy neutrinos and anti-neutrinos provides a distinctive signature at Earth. Ongoing and planned neutrino and dark matter experiments allow us to reconstruct the energy, flavor, and time of arrival of these high-energy neutrinos. For the first time, we show that these measurements can help pinpointing the mass of $ϕ$ and its couplings to neutrinos of different flavor. Our results can be generalized in a straightforward manner to other hypothetical feebly interacting particles, like novel gauge bosons or heavy neutral leptons, that decay into neutrinos. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2406_15506 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | The next galactic supernova can uncover mass and couplings of particles decaying to neutrinos Telalovic, Bernanda Fiorillo, Damiano F. G. Martínez-Miravé, Pablo Vitagliano, Edoardo Bustamante, Mauricio High Energy Physics - Phenomenology High Energy Astrophysical Phenomena Many particles predicted by extensions of the Standard Model feature interactions with neutrinos, e.g., Majoron-like bosons $ϕ$. If the mass of $ϕ$ is larger than about 10 keV, they can be produced abundantly in the core of the next galactic core-collapse supernova through neutrino coalescence, and leave it with energies of around 100 MeV. Their subsequent decay to high-energy neutrinos and anti-neutrinos provides a distinctive signature at Earth. Ongoing and planned neutrino and dark matter experiments allow us to reconstruct the energy, flavor, and time of arrival of these high-energy neutrinos. For the first time, we show that these measurements can help pinpointing the mass of $ϕ$ and its couplings to neutrinos of different flavor. Our results can be generalized in a straightforward manner to other hypothetical feebly interacting particles, like novel gauge bosons or heavy neutral leptons, that decay into neutrinos. |
| title | The next galactic supernova can uncover mass and couplings of particles decaying to neutrinos |
| topic | High Energy Physics - Phenomenology High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2406.15506 |