Limits on heavy neutral leptons, Z ′ bosons and majorons from high-energy supernova neutrinos
Abstract Light hypothetical particles with masses up to O 100 $$ \mathcal{O}(100) $$ MeV can be produced in the core of supernovae. Their subsequent decays to neutrinos can produce a flux component with higher energies than the standard flux. We study the impact of heavy neutral leptons, Z ′ bosons,...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2024-07-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP07(2024)057 |
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| Summary: | Abstract Light hypothetical particles with masses up to O 100 $$ \mathcal{O}(100) $$ MeV can be produced in the core of supernovae. Their subsequent decays to neutrinos can produce a flux component with higher energies than the standard flux. We study the impact of heavy neutral leptons, Z ′ bosons, in particular U 1 L μ − L τ $$ \textrm{U}{(1)}_{L_{\mu }-{L}_{\tau }} $$ and U(1) B−L gauge bosons, and majorons coupled to neutrinos flavor-dependently. We obtain new strong limits on these particles from no events of high-energy SN 1987A neutrinos and their future sensitivities from observations of galactic supernova neutrinos. |
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| ISSN: | 1029-8479 |