Probing the mechanism of neutrinoless double-beta decay in multiple isotopes
Abstract A large experimental program is being mounted to search for neutrinoless double-beta decay over the next decade. Multiple experiments using different target isotopes are being prepared to explore the whole parameter space allowed for inverted-ordered light neutrinos, and have the potential...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-02-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP02(2023)172 |
| _version_ | 1797779123577290752 |
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| author | Matteo Agostini Frank F. Deppisch Graham Van Goffrier |
| author_facet | Matteo Agostini Frank F. Deppisch Graham Van Goffrier |
| author_sort | Matteo Agostini |
| collection | DOAJ |
| description | Abstract A large experimental program is being mounted to search for neutrinoless double-beta decay over the next decade. Multiple experiments using different target isotopes are being prepared to explore the whole parameter space allowed for inverted-ordered light neutrinos, and have the potential to make discoveries in several other scenarios, including normal-ordered light neutrinos and other exotic mechanisms. We investigate to what extent long-range and exotic short-range contributions may be distinguished by combining measurements of the decay half-life across isotopes in the framework of a global Bayesian analysis. We demonstrate how measurements in two isotopes will constrain the parameter space up to a two-fold degeneracy, and how a further measurement in a third isotope removes such a degeneracy. We also discuss the impact of uncertainties and correlations in nuclear matrix element calculations. Our work motivates an experimental program measuring neutrinoless double-beta decay in more than one isotope, as this would break parameter degeneracies and advance our understanding of particle physics beyond the Standard Model. |
| first_indexed | 2024-03-12T23:27:13Z |
| format | Article |
| id | doaj.art-741c225165a94584a244cc004a4ff113 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-03-12T23:27:13Z |
| publishDate | 2023-02-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-741c225165a94584a244cc004a4ff1132023-07-16T11:05:56ZengSpringerOpenJournal of High Energy Physics1029-84792023-02-012023213010.1007/JHEP02(2023)172Probing the mechanism of neutrinoless double-beta decay in multiple isotopesMatteo Agostini0Frank F. Deppisch1Graham Van Goffrier2Department of Physics and Astronomy, University College LondonDepartment of Physics and Astronomy, University College LondonDepartment of Physics and Astronomy, University College LondonAbstract A large experimental program is being mounted to search for neutrinoless double-beta decay over the next decade. Multiple experiments using different target isotopes are being prepared to explore the whole parameter space allowed for inverted-ordered light neutrinos, and have the potential to make discoveries in several other scenarios, including normal-ordered light neutrinos and other exotic mechanisms. We investigate to what extent long-range and exotic short-range contributions may be distinguished by combining measurements of the decay half-life across isotopes in the framework of a global Bayesian analysis. We demonstrate how measurements in two isotopes will constrain the parameter space up to a two-fold degeneracy, and how a further measurement in a third isotope removes such a degeneracy. We also discuss the impact of uncertainties and correlations in nuclear matrix element calculations. Our work motivates an experimental program measuring neutrinoless double-beta decay in more than one isotope, as this would break parameter degeneracies and advance our understanding of particle physics beyond the Standard Model.https://doi.org/10.1007/JHEP02(2023)172Baryon/Lepton Number ViolationSpecific BSM PhenomenologyNeutrino Interactions |
| spellingShingle | Matteo Agostini Frank F. Deppisch Graham Van Goffrier Probing the mechanism of neutrinoless double-beta decay in multiple isotopes Journal of High Energy Physics Baryon/Lepton Number Violation Specific BSM Phenomenology Neutrino Interactions |
| title | Probing the mechanism of neutrinoless double-beta decay in multiple isotopes |
| title_full | Probing the mechanism of neutrinoless double-beta decay in multiple isotopes |
| title_fullStr | Probing the mechanism of neutrinoless double-beta decay in multiple isotopes |
| title_full_unstemmed | Probing the mechanism of neutrinoless double-beta decay in multiple isotopes |
| title_short | Probing the mechanism of neutrinoless double-beta decay in multiple isotopes |
| title_sort | probing the mechanism of neutrinoless double beta decay in multiple isotopes |
| topic | Baryon/Lepton Number Violation Specific BSM Phenomenology Neutrino Interactions |
| url | https://doi.org/10.1007/JHEP02(2023)172 |
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