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Implications of the Dark-LMA solution for neutrino mass matrices

Ghosh, Manojit; Goswami, Srubabati; Mukherjee, Ananya (2021) Implications of the Dark-LMA solution for neutrino mass matrices. Nuclear physics. B, 969 . pp. 115460-115477. ISSN 0550-3213

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In this work we have re-investigated two different kinds of texture zero ansatz of the low energy neutrino mass matrix in view of the Dark-Large-Mixing-Angle (DLMA) solution of the solar neutrino problem which can arise in the presence of non-standard interactions. In particular we revisit the cases of (i) one zero mass matrices when the lowest neutrino mass is zero and (ii) one zero texture with a vanishing minor. In our study we find that for most of the cases, the texture zero conditions which are allowed for the LMA solution, are also allowed for the DLMA solution. However, we found two textures belonging to the case of one zero texture with a vanishing minor where LMA solution does not give a viable solution whereas DLMA solution does. We analyze all the possible texture zero cases belonging to these two kinds of texture zero structures in detail and present correlations between different parameters. We also present the predictions for the effective neutrino mass governing neutrino-less double beta decay for the allowed textures.

Item Type: Article
Uncontrolled Keywords: neutrino
Subjects: NATURAL SCIENCES > Physics
Divisions: Center of Excellence for Advanced Materials and Sensing Devices
Depositing User: Sofija Konjević
Date Deposited: 09 Nov 2021 12:19
DOI: 10.1016/j.nuclphysb.2021.115460

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