Type II Seesaw at LHC: the Roadmap

TL;DR

This paper provides a comprehensive analysis of the type-II seesaw mechanism's phenomenology at the LHC, focusing on the doubly-charged scalar and its experimental bounds, serving as a guide for future collider studies.

Contribution

It offers a detailed exploration of the type-II seesaw model's collider signatures and constraints, emphasizing the impact of the particle spectrum on experimental bounds.

Findings

Doubly-charged scalar mass bounds depend on the particle spectrum.

Electroweak precision constraints significantly influence the model's parameter space.

The study serves as a roadmap for future LHC investigations into the type-II seesaw mechanism.

Abstract

In this Letter we revisit the type-II seesaw mechanism based on the addition of a weak triplet scalar to the standard model. We perform a comprehensive study of its phenomenology at the LHC energies, complete with the electroweak precision constraints. We pay special attention to the doubly-charged component, object of collider searches for a long time, and show how the experimental bound on its mass depends crucially on the particle spectrum of the theory. Our study can be used as a roadmap for future complete LHC studies.