# $Z'$ portal to Chern-Simons Dark Matter

## TL;DR

This paper explores a vector dark matter model interacting via a $Z'$ portal with Chern-Simons terms, analyzing detection prospects and proposing an ultraviolet completion for the framework.

## Contribution

It introduces a novel Chern-Simons portal framework for dark matter and discusses its phenomenological implications and potential UV completion.

## Key findings

- Direct detection is ineffective due to suppressed nuclear recoil signals.
- CTA and LHC searches provide complementary constraints on the model.
- Two scenarios for $Z'$ coupling to the Standard Model are analyzed.

## Abstract

We study the phenomenological credibility of a vectorial dark matter, coupled to a $Z'$ portal through Chern-Simons interaction. We scrutinize two possibilities of connecting a $Z'$ with the Standard Model: (1) through kinetic mixing and (2) from a second Chern-Simons interaction. Both scenarios are characterized by suppressed nuclear recoil scatterings, rendering direct detection searches not promising. Indirect detection experiments, on the other hand, furnish complementary limits for TeV scale masses, specially with the CTA. Searches for mono-jet and dileptons signals at the LHC are important to partially probe the kinetic mixing setup. Finally we propose an UV completion of the Chern-Simons Dark Matter framework.