Scotogenesis in hybrid textures of neutrino mass matrix and neutrinoless double beta decay
We study the connection between dark matter (DM) and neutrinoless double beta (0νββ) decay in a scotogenic model with hybrid texture in the neutrino mass matrix. Characteristically, the framework allows to write all the non-zero elements of the mass matrix proportional to effective Majorana mass |Me...
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| Autores principales: | , , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Elsevier
2022
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/518fe60e457844f595f8cce04bc4cda5 |
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| Sumario: | We study the connection between dark matter (DM) and neutrinoless double beta (0νββ) decay in a scotogenic model with hybrid texture in the neutrino mass matrix. Characteristically, the framework allows to write all the non-zero elements of the mass matrix proportional to effective Majorana mass |Mee|. The overall scale of the neutrino mass is found to be governed by non-zero |Mee|. We have obtained interesting correlations of relic density of DM(Ωh2) with DM mass M1 and |Mee|. Using experimental value of DM relic density (Ωh2), the DM mass M1, is found to be O (1 TeV) which is within reach of collider experiments. Specifically, for all five hybrid textures, the range of upper bound on DM mass M1 is found to be (2.27-5.31) TeV. Another interesting feature of the model is the existence of lower bound on |Mee| for all allowed hybrid textures except texture T5 which can be probed in current and future 0νββ decay experiments. With high sensitivities, these experiments shall establish the theoretical status of the proposed model. For example, the non-observation of 0νββ decay down to the sensitivity O(0.03) eV will refute T3 hybrid texture. |
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