Non-conservation of Lepton Numbers in the Neutrino Sector Could Change the Prospects for Core Collapse Supernova Explosions
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arXiv
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| Format: | Preprint |
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2024
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| author | Suliga, Anna M. Cheong, Patrick Chi-Kit Froustey, Julien Fuller, George M. Gráf, Lukáš Kehrer, Kyle Scholer, Oliver Shalgar, Shashank |
| author_facet | Suliga, Anna M. Cheong, Patrick Chi-Kit Froustey, Julien Fuller, George M. Gráf, Lukáš Kehrer, Kyle Scholer, Oliver Shalgar, Shashank |
| contents | We show that interactions violating the conservation of lepton numbers in the neutrino sector could significantly alter the standard low entropy picture for the pre-supernova collapsing core of a massive star. A rapid neutrino-antineutrino equilibration leads to entropy generation and enhanced electron capture and, hence, a lower electron fraction than in the standard model. This would affect the downstream core evolution, the prospects for a supernova explosion, and the emergent neutrino signal. If realized by lepton-number-violating neutrino self-interactions (LNV $ν$SI), the relevant mediator mass and coupling ranges can be probed by future accelerator-based experiments. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_01080 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Non-conservation of Lepton Numbers in the Neutrino Sector Could Change the Prospects for Core Collapse Supernova Explosions Suliga, Anna M. Cheong, Patrick Chi-Kit Froustey, Julien Fuller, George M. Gráf, Lukáš Kehrer, Kyle Scholer, Oliver Shalgar, Shashank High Energy Physics - Phenomenology High Energy Astrophysical Phenomena We show that interactions violating the conservation of lepton numbers in the neutrino sector could significantly alter the standard low entropy picture for the pre-supernova collapsing core of a massive star. A rapid neutrino-antineutrino equilibration leads to entropy generation and enhanced electron capture and, hence, a lower electron fraction than in the standard model. This would affect the downstream core evolution, the prospects for a supernova explosion, and the emergent neutrino signal. If realized by lepton-number-violating neutrino self-interactions (LNV $ν$SI), the relevant mediator mass and coupling ranges can be probed by future accelerator-based experiments. |
| title | Non-conservation of Lepton Numbers in the Neutrino Sector Could Change the Prospects for Core Collapse Supernova Explosions |
| topic | High Energy Physics - Phenomenology High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2410.01080 |