Natural and Dynamical Neutrino Mass Mechanism at the LHC

TL;DR

This paper introduces a dynamical neutrino mass mechanism at the electroweak scale, predicting distinctive LHC signatures and phenomenological features like a Goldstone boson and altered Higgs couplings.

Contribution

It generalizes the type II seesaw model by removing fine-tuning, leading to dynamical lepton number breaking with unique LHC phenomenology.

Findings

Identification of a distinctive LHC signature for the model

Presence of a massless Goldstone boson

Deviations in standard model Higgs couplings

Abstract

We generalize the scalar triplet neutrino mass model, the type II seesaw. Requiring fine-tuning and arbitrarily small parameters to be absent leads to dynamical lepton number breaking at the electroweak scale and a rich LHC phenomenology. A smoking gun signature at the LHC that allows to distinguish our model from the usual type II seesaw scenario is identified. Besides, we discuss other interesting phenomenological aspects of the model such as the presence of a massless Goldstone boson and deviations of standard model Higgs couplings