Dark matter direct detection with spin-2 mediators

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.

Search for vector-mediated dark matter at the LHC with forward proton tagging

“…Although there are lots of new physics models which explain the origin of DM, simplified models of dark matter have been adopted as benchmark scenarios to study the DM search strategies at the LHC [1]. Following the recommendations for conducting the systematic DM searches by the LHC Dark Matter Working Group [2][3][4][5][6], constraints on simplified DM models based on the LHC Run-I and Run-II data have been studied for spin-0 [7][8][9][10][11][12][13][14][15], spin-1 [7-9, 13, 16-25], and spin-2 mediators [26][27][28][29][30][31][32].…”