Flavor-Specific Dark Matter Signatures through the Lens of Neutrino Oscillations

TL;DR

This paper explores how leptophilic dark matter models can be linked to neutrino oscillation data, offering new ways to understand neutrino properties without additional flavor symmetries.

Contribution

It demonstrates the correlation between flavor-specific dark matter signals and neutrino oscillation parameters within various neutrino mass models, without requiring new flavor symmetries.

Findings

Dark matter signals correlate with neutrino mass hierarchy.

Cosmic ray spectra can reveal flavor-specific dark matter annihilation.

Collider signals are sensitive to neutrino oscillation parameters.

Abstract

We investigate the flavor-specific properties of leptophilic dark matter in neutrino mass models, where dark matter signals are directly correlated with the neutrino oscillation data, providing complementary insights into the neutrino mass hierarchy and CP phases. Notably, this can be accomplished without introducing a flavor-specific portal to dark matter, imposing any new flavor symmetry, or involving flavon fields. As a case study, we analyze the correlation between the flavor-philic nature of dark matter and neutrino oscillation data in the type-II seesaw and Zee-Babu models, and extend this discussion to other neutrino mass models. We analyze the indirect signatures of such leptophilic dark matter, specifically examining the spectrum of the cosmic ray electron/positron flux resulting from the pair annihilation of dark matter in the Galactic halo, and explore correlated lepton-specific signals at collider experiments sensitive to neutrino oscillation data.