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

## TL;DR

This paper introduces a new parametrization of the Yukawa matrix in the scotogenic model, aligning with neutrino data, and analyzes the phenomenology of one-zero textures in the neutrino mass matrix, identifying patterns compatible with observations.

## Contribution

It proposes a novel parametrization of the Yukawa matrix in the scotogenic model and examines the phenomenological viability of specific neutrino mass matrix textures.

## Key findings

- One-zero texture patterns are compatible with neutrino oscillation data.
- Five out of six complex Yukawa matrix patterns fit experimental constraints.
- The new parametrization simplifies analytical expressions for neutrino masses.

## 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 $\mu \rightarrow e\gamma$ process.