Pseudo-Familon Dark Matter

TL;DR

This paper proposes a pseudo-familon as a new dark matter candidate arising from global symmetry breaking, capable of explaining cosmic ray electron and positron excesses through its decay primarily into charged leptons.

Contribution

It introduces a novel pseudo-familon dark matter model based on lepton generation symmetry breaking, differing from previous pseudo-Majoron models.

Findings

Pseudo-familon decays mainly into charged leptons.

Model can account for cosmic ray electron and positron excesses.

Provides a viable dark matter candidate with distinctive decay signatures.

Abstract

Motivated by a model of pseudo-Majoron dark matter, we show how the breaking of a global symmetry that acts nontrivially in lepton generation space can lead to a viable pseudo-familon dark matter candidate. Unlike the pseudo-Majoron, the pseudo-familon in our model decays primarily to charged leptons and can account for the excess observed in the cosmic ray electron and positron spectra.