English

Minimal structure for neutrino mass matrix

High Energy Physics - Phenomenology 2025-07-17 v2

Abstract

Taking clue from the minimal structure of texture 4-zero hermitian mass matrices, which are very successful in accommodating quark mixing data, we propose a form of texture 2-zero complex symmetric neutrino mass matrix with only one phase parameter. This minimal mass matrix not only accommodates the available neutrino oscillation data, but also makes interesting predictions for the unknown parameters like the lightest neutrino mass mν1m_{\nu_1} (for normal ordering(NO)), Jarlskog's rephasing invariant JCPJ_{CP}, Dirac type CP violating phase δCP\delta_{CP} and effective neutrino mass <mee>\left< m_{ee} \right>. We also explore the correlations between the parameters of the model, that lead us to minimizing the parameters further.

Keywords

Cite

@article{arxiv.2412.15684,
  title  = {Minimal structure for neutrino mass matrix},
  author = {Manoj Kumar and Nikhila Awasthi and Monika Randhawa and Manmohan Gupta},
  journal= {arXiv preprint arXiv:2412.15684},
  year   = {2025}
}
R2 v1 2026-06-28T20:43:32.099Z