Dark Matter Direct Detection from new interactions in models with spin-two mediators

TL;DR

This paper explores new interactions between dark matter and Standard Model particles mediated by a massive spin-two resonance, analyzing effective theories and their implications for detection and collider experiments.

Contribution

It introduces novel types of dark matter-SM interactions via spin-two mediators and connects these to experimental constraints and collider phenomenology.

Findings

Identified new effective DM-SM interactions mediated by spin-two particles.

Matched these interactions to gravitational form factors for direct detection.

Discussed the interplay between relic density, direct detection, and collider bounds.

Abstract

We consider models where a massive spin-two resonance acts as the mediator between Dark Matter (DM) and the SM particles through the energy-momentum tensor. We examine the effective theory for fermion, vector and scalar DM generated in these models and find novel types of DM-SM interaction never considered before. We identify the effective interactions between DM and the SM quarks when the mediator is integrated out, and match them to the gravitational form factors relevant for spin-independent DM-nucleon scattering. We also discuss the interplay between DM relic density conditions, direct detection bounds and collider searches for the spin-two mediator.