Correlating neutrino magnetic moment and scalar triplet dark matter to enlighten XENONnT bounds in a Type-II model

TL;DR

This paper explores a Type-II radiative seesaw model linking neutrino magnetic moments and scalar triplet dark matter, aligning with XENONnT bounds and producing sub-eV neutrino masses.

Contribution

It introduces a novel loop-level setup with vector-like fermions and scalar triplets that simultaneously explains neutrino masses and dark matter within experimental constraints.

Findings

Neutrino magnetic moments are within the desired range.

Dark matter components satisfy direct detection limits.

Model predicts sub-eV neutrino masses.

Abstract

We investigate neutrino magnetic moment, triplet scalar dark matter in a Type-II radiative seesaw scenario. With three vector-like fermion doublets and two scalar triplets, we provide a loop level setup for the electromagnetic vertex of neutrinos. All the scalar multiplet components constitute the total dark matter abundance of the Universe and also their scattering cross section with detector lie below the experimental upper limit. Using the consistent parameter space in dark matter domain, we obtain light neutrino mass in sub-eV scale and also magnetic moment in the desired range. We further derive the constraints on neutrino transition magnetic moments, consistent with XENONnT limit.