An inverse seesaw model with natural hierarchy at TeV scale

TL;DR

This paper introduces a novel inverse seesaw model at TeV scale that does not rely on additional symmetries, using higher $SU(2)_L$ representations, and discusses its testability at colliders.

Contribution

It presents a new inverse seesaw framework with higher $SU(2)_L$ representations and no extra symmetries, establishing a TeV-scale cutoff and collider testability.

Findings

Cut-off energy around TeV scale determined by gauge coupling behavior.

Model is testable at collider experiments.

No additional symmetries needed in the model.

Abstract

We propose a new kind of inverse seesaw model without any additional symmetries. Instead of the symmetries, we introduce several fermions and bosons with higher $SU(2)_L$ representations. After formulating the Higgs sector and neutrino sector, we show that the cut-off energy, which is valid to our model, is at around TeV scale, by examining behavior of $SU(2)_L$ gauge coupling. Then we show the testability of our model at collider physics.