Inverse type II seesaw mechanism and its signature at the LHC and ILC

TL;DR

This paper explores an inverse type II seesaw mechanism within a Higgs triplet model, analyzing its potential signatures at the LHC and ILC to confirm the mechanism and determine neutrino mass hierarchy.

Contribution

It develops a novel inverse seesaw framework based on the Higgs triplet model and assesses its detectability at future colliders.

Findings

Potential collider signatures identified for the inverse seesaw mechanism.

Joint analysis of LHC and ILC could confirm the mechanism.

Possibility to infer neutrino mass hierarchy from collider data.

Abstract

The advent of the LHC, and the proposal of building future colliders as the ILC, both programmed to explore new physics at the TeV scale, justifies the recent interest in studying all kind of seesaw mechanisms whose signature lies on such energy scale. The natural candidate for this kind of seesaw mechanism is the inverse one. The conventional inverse seesaw mechanism is implemented in an arrangement involving six new heavy neutrinos in addition to the three standard ones. In this paper we develop the inverse seesaw mechanism based on Higgs triplet model and probe its signature at the LHC and ILC. We argue that the conjoint analysis of the LHC together with the ILC may confirm the mechanism and, perhaps, infer the hierarchy of the neutrino masses.