Scalar Dark Matter with Type II Seesaw

TL;DR

This paper explores a model combining type I and type II seesaw mechanisms to generate tiny neutrino masses and proposes a stable scalar doublet as a dark matter candidate, analyzing its relic abundance and experimental implications.

Contribution

It introduces a novel abelian extension of the Standard Model that links neutrino mass generation with dark matter stability and relic abundance calculations.

Findings

Relic abundance depends on the strength of the type II seesaw term.

The model provides a naturally stable dark matter candidate.

Potential for experimental verification in neutrino, dark matter, and collider experiments.

Abstract

We study the possibility of generating tiny neutrino mass through a combination of type I and type II seesaw mechanism within the framework of an abelian extension of standard model. The model also provides a naturally stable dark matter candidate in terms of the lightest neutral component of a scalar doublet. We compute the relic abundance of such a dark matter candidate and also point out how the strength of type II seesaw term can affect the relic abundance of dark matter. Such a model which connects neutrino mass and dark matter abundance has the potential of being verified or ruled out in the ongoing neutrino, dark matter as well as accelerator experiments.