Deep Correlation Between Cosmic-Ray Anomaly and Neutrino Masses

TL;DR

This paper explores a theoretical link between cosmic-ray positron anomalies and neutrino masses, proposing models where both phenomena originate from a common operator involving a gauge-singlet scalar field.

Contribution

It introduces two scenarios connecting dark matter decay and neutrino mass generation through a unified operator, offering a novel theoretical perspective.

Findings

Dark matter lifetime relates to neutrino mass scale.

Proposed models unify dark matter decay and neutrino mass origin.

Theoretical framework linking cosmic-ray anomalies with neutrino physics.

Abstract

The positron anomaly recently reported by the cosmic-ray measurements suggests that, if explained by the decay of dark matter particle, the decay source is closely linked up with the leptonic sector of the standard model. It is observed that, with a simple dimensional analysis, the lifetime of dark matter for the anomaly is expressed by the energy scale of neutrino masses. We present two scenarios in which these two matter at issue (the dark matter width and the tiny neutrino masses) stem from a single operator involving a gauge-singlet scalar field.