Two Loop Radiative Seesaw Model with Inert Triplet Scalar Field

TL;DR

This paper introduces a two-loop radiative seesaw model with an inert triplet scalar, providing neutrino masses and dark matter candidates, and explores collider phenomenology and distinctions from minimal models.

Contribution

It presents a novel two-loop radiative seesaw model incorporating an inert triplet scalar, with dark matter candidates and detailed phenomenological analysis.

Findings

Dark matter candidates satisfy WMAP data at specific masses.

Doubly-charged scalars can be detected at the LHC.

Model can be distinguished from minimal Higgs triplet models.

Abstract

We propose a radiative seesaw model with an inert triplet scalar field in which Majorana neutrino masses are generated at the two loop level. There are fermionic or bosonic dark matter candidates in the model. We find that each candidate can satisfy the WMAP data when its mass is taken to be around the half of the mass of the standard model like Higgs boson. We also discuss phenomenology of the inert triplet scalar bosons, especially focusing on the doubly-charged scalar bosons at Large Hadron Collider in parameter regions constrained by the electroweak precision data and WMAP data. We study how we can distinguish our model from the minimal Higgs triplet model.