Trinification, the Hierarchy Problem and Inverse Seesaw Neutrino Masses

TL;DR

This paper explores how inverse seesaw mechanisms can generate neutrino masses at the TeV scale in minimal trinification models, especially when traditional high-scale mechanisms are absent due to solutions to the hierarchy problem.

Contribution

It introduces an inverse seesaw approach for neutrino mass generation within trinification models that lack high-scale seesaw mechanisms, analyzing its phenomenological implications.

Findings

Inverse seesaw can produce realistic neutrino masses at TeV scale

Phenomenological consequences include potential collider signatures

Addresses neutrino mass generation without high-scale seesaw

Abstract

In minimal trinification models light neutrino masses can be generated via a radiative see-saw mechanism, where the masses of the right-handed neutrinos originate from loops involving Higgs and fermion fields at the unification scale. This mechanism is absent in models aiming at solving or ameliorating the hierarchy problem, such as low-energy supersymmetry, since the large seesaw-scale disappears. In this case, neutrino masses need to be generated via a TeV-scale mechanism. In this paper, we investigate an inverse seesaw mechanism and discuss some phenomenological consequences.