Parametrization of the Yukawa matrix in the scotogenic model and single-zero textures of the neutrino mass matrix

Abstract

As the first topic, we propose a new parametrization of the complex Yukawa matrix in the scotogenic model. The new parametrization is compatible with the particle data group parametrization of the neutrino sector. Some analytical expressions for the neutrino masses with the new parametrization are shown. As the second topic, we consider the phenomenology of the socotogenic model with the one-zero-textures of the neutrino flavor mass matrix. One of the six patterns of the neutrino mass matrix is favorable for the real Yukawa matrix. On the other hand, for the complex Yukawa matrix, five of the six patterns are compatible with observations of the neutrino oscillations, dark matter relic abundance and branching ratio of the $\mu \to e\gamma$ process.

18 pages, 5 figures. Accepted for publication in International Journal of Modern Physics A. arXiv admin note: text overlap with arXiv:1808.01060

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• Magic square and three-zero textures for Dirac neutrinos
• Modified TM2 for Reproducing All Best-Fit Values of Neutrino Mixing Angles
• Is magic texture for Majorana neutrino immanent in Dirac nature?