Effective Majorana neutrino decay

TL;DR

This paper analyzes the decay modes of heavy sterile Majorana neutrinos using an effective theory, providing detailed decay channels, branching ratios, and decay widths relevant for experimental detection and astrophysical studies.

Contribution

It introduces a comprehensive analysis of two and three-body decay processes of heavy Majorana neutrinos across various masses using an effective theoretical framework.

Findings

Identified dominant decay channels and branching ratios.

Calculated total decay widths for different neutrino masses.

Provided data useful for experimental searches and astrophysical observations.

Abstract

We study the decay of heavy sterile Majorana neutrinos according to the interactions obtained from an effective general theory. We describe the two and three-body decays for a wide range of neutrino masses. The results obtained and presented in this work could be useful for the study of the production and detection of this particles in a variety of high energy physics experiments and astrophysical observations. We show in different figures the dominant branching ratios and the total decay width.