# Multi-Component Dark Matter in a Non-Abelian Dark Sector

**Authors:** Fatemeh Elahi, Sara Khatibi

arXiv: 1902.04384 · 2019-07-24

## TL;DR

This paper investigates a complex dark sector model with multiple dark matter candidates arising from a gauged $SU(2)_R$ symmetry, analyzing its phenomenology, experimental constraints, and potential to explain DAMPE observations.

## Contribution

It introduces a multi-component dark matter framework with a non-Abelian gauge symmetry and explores its phenomenological viability and implications for recent cosmic-ray observations.

## Key findings

- Multiple dark matter candidates identified: Dirac fermion, gauge boson, scalar.
- Parameter space consistent with experimental constraints.
- Potential explanation for DAMPE electron-positron spectrum feature.

## Abstract

In this paper, we explore a dark sector scenario with a gauged $SU(2)_R$ and a global $U(1)_X \times \mathbb{Z}_2$, where the continuous symmetries are spontaneously broken to a global $U(1)_D$. We show that in various regions of the parameter space we can have two, or three dark matter candidates, where these dark matter particles are either a Dirac fermion, a dark gauge boson, or a complex scalar. The phenomenological implications of this scenario are vast and interesting. We identify the parameter space that is still viable after taking into account the constraints from various experiments. We, also, discuss how this scenario can explain the recent observation by DAMPE in the electron-positron spectrum. Furthermore, we comment on the neutrino mass generation through non-renormalizable interactions between the standard model and the dark sector.

## Full text

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## Figures

6 figures with captions in the complete paper: https://tomesphere.com/paper/1902.04384/full.md

## References

98 references — full list in the complete paper: https://tomesphere.com/paper/1902.04384/full.md

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Source: https://tomesphere.com/paper/1902.04384