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| Main Authors: | , |
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| Format: | Preprint |
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2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2402.04600 |
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| _version_ | 1866911842959360000 |
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| author | Chen, Shao-Long Xiao, Yu-Qi |
| author_facet | Chen, Shao-Long Xiao, Yu-Qi |
| contents | Neutrinoless double beta ($0νββ$) decay is the most promising way to determine whether neutrinos are Majorana particles. There are many experiments based on different isotopes searching for $0νββ$ decay. Combining the searches of $0νββ$ decay in multiple isotopes provides a possible method to distinguish operators and different models. The contributions to $0νββ$ decay come from standard, long-range, and short-range mechanisms. We analyze the scenario in which the standard and short-range operators exist simultaneously within the framework of low-energy effective field theory. Five specific models are considered, which can realize neutrino mass and can contribute to $0νββ$ decay via multiple mechanisms. A criterion to evaluate the possibilities of future experiments to discriminate operators and models is built. We find that the complementary searches for $0νββ$ decay in different isotopes can distinguish the cases that contain the low-energy effective operators $\mathcal{O}_{1,2,5}$ and R-parity violating supersymmetry model. For other cases and models, the experimental searches within multiple isotopes can also more effectively constrain the parameter region than with only one isotope. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_04600 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Neutrinoless Double Beta Decay in Multiple Isotopes for Fingerprints Identification of Operators and Models Chen, Shao-Long Xiao, Yu-Qi High Energy Physics - Phenomenology Neutrinoless double beta ($0νββ$) decay is the most promising way to determine whether neutrinos are Majorana particles. There are many experiments based on different isotopes searching for $0νββ$ decay. Combining the searches of $0νββ$ decay in multiple isotopes provides a possible method to distinguish operators and different models. The contributions to $0νββ$ decay come from standard, long-range, and short-range mechanisms. We analyze the scenario in which the standard and short-range operators exist simultaneously within the framework of low-energy effective field theory. Five specific models are considered, which can realize neutrino mass and can contribute to $0νββ$ decay via multiple mechanisms. A criterion to evaluate the possibilities of future experiments to discriminate operators and models is built. We find that the complementary searches for $0νββ$ decay in different isotopes can distinguish the cases that contain the low-energy effective operators $\mathcal{O}_{1,2,5}$ and R-parity violating supersymmetry model. For other cases and models, the experimental searches within multiple isotopes can also more effectively constrain the parameter region than with only one isotope. |
| title | Neutrinoless Double Beta Decay in Multiple Isotopes for Fingerprints Identification of Operators and Models |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2402.04600 |