A panorama of new-physics explanations to the MiniBooNE excess
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arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866916589301923840 |
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| author | Abdullahi, Asli M. Zink, Jaime Hoefken Hostert, Matheus Massaro, Daniele Pascoli, Silvia |
| author_facet | Abdullahi, Asli M. Zink, Jaime Hoefken Hostert, Matheus Massaro, Daniele Pascoli, Silvia |
| contents | The MiniBooNE low-energy excess stands as an unexplained anomaly in short-baseline neutrino oscillation experiments. It has been shown that it can be explained in the context of dark sector models. Here, we provide an overview of the possible new-physics solutions based on electron, photon, and dilepton final states. We systematically discuss the various production mechanisms for dark particles in neutrino-nucleus scattering. Our main result is a comprehensive fit to the MiniBooNE energy spectrum in the parameter space of dark neutrino models, where short-lived heavy neutral leptons are produced in neutrino interactions and decay to $e^+e^-$ pairs inside the detector. For the first time, other experiments will be able to directly confirm or rule out dark neutrino interpretations of the MiniBooNE low-energy excess. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2308_02543 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | A panorama of new-physics explanations to the MiniBooNE excess Abdullahi, Asli M. Zink, Jaime Hoefken Hostert, Matheus Massaro, Daniele Pascoli, Silvia High Energy Physics - Phenomenology High Energy Physics - Experiment The MiniBooNE low-energy excess stands as an unexplained anomaly in short-baseline neutrino oscillation experiments. It has been shown that it can be explained in the context of dark sector models. Here, we provide an overview of the possible new-physics solutions based on electron, photon, and dilepton final states. We systematically discuss the various production mechanisms for dark particles in neutrino-nucleus scattering. Our main result is a comprehensive fit to the MiniBooNE energy spectrum in the parameter space of dark neutrino models, where short-lived heavy neutral leptons are produced in neutrino interactions and decay to $e^+e^-$ pairs inside the detector. For the first time, other experiments will be able to directly confirm or rule out dark neutrino interpretations of the MiniBooNE low-energy excess. |
| title | A panorama of new-physics explanations to the MiniBooNE excess |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2308.02543 |