Contribution to the neutrino magnetic moment coming from 2HDM in presence of magnetic fields

TL;DR

This paper investigates how two-Higgs-doublet models (2HDMs) influence the neutrino magnetic dipole moment in magnetic fields, with implications for astrophysics and cosmology.

Contribution

It introduces charged Higgs bosons into 2HDMs to analyze their effects on neutrino magnetic moments in magnetic fields, expanding understanding of new physics contributions.

Findings

Charged Higgs bosons affect neutrino magnetic moments.

Implications for astrophysics and cosmology.

Enhanced understanding of 2HDM effects on neutrino properties.

Abstract

The confirmation of the neutrino mass by oscillation phenomena converts the study of the magnetic dipole moment (MDM) of the neutrino, in vacuum and regions where existing external magnetic fields, a topic of particular interest from the theoretical point of view. The MDM has an implicit relation with neutrino masses, and this is a possible benchmark from new physics in the solution of open questions in neutrino physics. Besides we know that this kind of phenomena has significant consequences on cosmology and astrophysics, e.g., under the influence of combined effects of neutrinos in the compact objects formation and evolution of primordials magnetic fields. We calculate and analyze such effects introducing charged Higgs bosons based on the parameter space of several 2HDMs with and without flavor conservation in neutral currents.