Derivative Portal Dark Matter

TL;DR

This paper introduces Derivative Portal Dark Matter, a novel model connecting dark matter to the Standard Model via a derivative-mediated interaction, evading direct detection constraints while fitting relic density observations.

Contribution

It proposes a new class of dark matter models with derivative couplings, providing UV complete examples that evade detection constraints and align with observational data.

Findings

Models evade direct detection constraints

Models fit dark matter relic density

Models survive indirect detection and collider searches

Abstract

We propose a new kind of Dark Matter: Derivative Portal Dark Matter. This kind of Dark Matter connects to the Standard Model through a massive mediator, which links to the Standard Model in derivative form. The derivative of a mediator in momentum space corresponds to the mediated momentum, which vanishes in the zero momentum transfer limit. As a result, this kind of Dark Matter can evade stringent constraint from the Dark Matter direct detection while fitting the Dark Matter relic density observation naturally. We explore several UV complete models of this kind of Dark matter. What's more, we show that these models also survive from Dark Matter indirect detection and collider search.