Estimates of the masses of heavy right-handed neutrino particles using the seesaw mechanism

TL;DR

This paper estimates the masses of heavy right-handed neutrinos and active neutrinos using the seesaw mechanism, considering phenomenological constraints and characteristic scales, with implications for neutrino mass observables.

Contribution

It provides new estimates of heavy right-handed neutrino masses based on the seesaw mechanism and phenomenological assumptions, incorporating constraints on active neutrino masses.

Findings

Estimated active neutrino mass sum limited to 0.06 eV

Derived observable neutrino masses m_C and m_β

Provided mass ranges for heavy right-handed neutrinos

Abstract

The mass estimates of active and sterile (right-handed) neutrinos are considered at the phenomenological level using the seesaw mechanism. It is assumed that the neutrino mass values depend on three characteristic scales, and the sum of the active neutrino mass values is limited from above by 0.06 eV. The neutrino mass values are estimated, as well as the observable neutrino mass values, namely, the average mass m_C of active neutrinos and the kinematic neutrino mass m_{\beta} of beta-decay.