New constraints on heavy neutral leptons from Super-Kamiokande data
Abstract Heavy neutral leptons are predicted in many extensions of the Standard Model with massive neutrinos. If kinematically accessible, they can be copiously produced from kaon and pion decays in atmospheric showers, and subsequently decay inside large neutrino detectors. We perform a search for...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-03-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-020-7795-z |
| _version_ | 1818145194520870912 |
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| author | P. Coloma P. Hernández V. Muñoz I. M. Shoemaker |
| author_facet | P. Coloma P. Hernández V. Muñoz I. M. Shoemaker |
| author_sort | P. Coloma |
| collection | DOAJ |
| description | Abstract Heavy neutral leptons are predicted in many extensions of the Standard Model with massive neutrinos. If kinematically accessible, they can be copiously produced from kaon and pion decays in atmospheric showers, and subsequently decay inside large neutrino detectors. We perform a search for these long-lived particles using Super-Kamiokande multi-GeV neutrino data and derive stringent limits on the mixing with electron, muon and tau neutrinos as a function of the long-lived particle mass. We also present the limits on the branching ratio versus lifetime plane, which are helpful in determining the constraints in non-minimal models where the heavy neutral leptons have new interactions with the Standard Model. |
| first_indexed | 2024-12-11T11:59:35Z |
| format | Article |
| id | doaj.art-424fa5aa776f4371b1b9a240c8a77435 |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-12-11T11:59:35Z |
| publishDate | 2020-03-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-424fa5aa776f4371b1b9a240c8a774352022-12-22T01:08:07ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522020-03-018031710.1140/epjc/s10052-020-7795-zNew constraints on heavy neutral leptons from Super-Kamiokande dataP. Coloma0P. Hernández1V. Muñoz2I. M. Shoemaker3IFIC (CSIC-UVEG), Edificio Institutos InvestigaciónIFIC (CSIC-UVEG), Edificio Institutos InvestigaciónIFIC (CSIC-UVEG), Edificio Institutos InvestigaciónCenter for Neutrino Physics, Department of Physics, Virginia Tech UniversityAbstract Heavy neutral leptons are predicted in many extensions of the Standard Model with massive neutrinos. If kinematically accessible, they can be copiously produced from kaon and pion decays in atmospheric showers, and subsequently decay inside large neutrino detectors. We perform a search for these long-lived particles using Super-Kamiokande multi-GeV neutrino data and derive stringent limits on the mixing with electron, muon and tau neutrinos as a function of the long-lived particle mass. We also present the limits on the branching ratio versus lifetime plane, which are helpful in determining the constraints in non-minimal models where the heavy neutral leptons have new interactions with the Standard Model.http://link.springer.com/article/10.1140/epjc/s10052-020-7795-z |
| spellingShingle | P. Coloma P. Hernández V. Muñoz I. M. Shoemaker New constraints on heavy neutral leptons from Super-Kamiokande data European Physical Journal C: Particles and Fields |
| title | New constraints on heavy neutral leptons from Super-Kamiokande data |
| title_full | New constraints on heavy neutral leptons from Super-Kamiokande data |
| title_fullStr | New constraints on heavy neutral leptons from Super-Kamiokande data |
| title_full_unstemmed | New constraints on heavy neutral leptons from Super-Kamiokande data |
| title_short | New constraints on heavy neutral leptons from Super-Kamiokande data |
| title_sort | new constraints on heavy neutral leptons from super kamiokande data |
| url | http://link.springer.com/article/10.1140/epjc/s10052-020-7795-z |
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