Radiative Inverse Seesaw: Verifiable New Mechanism of Neutrino Mass

TL;DR

This paper proposes a new verifiable neutrino mass mechanism called radiative inverse seesaw, which operates at the TeV scale and involves two-loop effects, offering testable predictions and natural dark matter candidates.

Contribution

It introduces a novel radiative inverse seesaw mechanism for neutrino mass that is testable at TeV energies and naturally includes dark matter candidates.

Findings

Neutrino mass generated via a two-loop inverse seesaw mechanism.

Mechanism operates at TeV scale, making it experimentally accessible.

Dark matter candidates emerge naturally from the model.

Abstract

If the canonical seesaw mechanism alone is responsible for neutrino mass, i.e. m_nu = -m_D^2/m_N, it can neither be proved nor disproved at the TeV energy scale. A new verifiable mechanism of neutrino mass is proposed, using the "inverse" seesaw, with new physics at the TeV scale, such that m_nu = m_D^2 epsilon_L/m_N^2, where epsilon_L is a two-loop effect. Dark-matter candidates also appear naturally.