Dark matter mixing within the seesaw type II mechanism in the left-right symmetric model

TL;DR

This paper investigates how dark matter mixing is influenced by the seesaw type II mechanism within a left-right symmetric model, focusing on sterile neutrino properties and symmetry breaking scales.

Contribution

It analyzes the dependence of sterile neutrino mixing parameters on left-right symmetry breaking scales in different neutrino mass hierarchies.

Findings

Mixing parameters vary with symmetry breaking scales

Differences between direct and inverse hierarchies are characterized

Implications for sterile neutrino dark matter are discussed

Abstract

The seesaw type II mechanism is considered within the framework of a left-right chiral model with a gauge group $SU(2)_L\times SU(2)_R\times U(1)$, the lepton sector of which includes three generations of heavy Majorana neutrinos. The dependence of the mixing parameters of the lightest sterile neutrino as a dark matter particle on the scales of left-right symmetry breaking in the case of direct and inverse hierarchies of active neutrino masses is analyzed.