Nearly Supersymmetric Dark Atoms

TL;DR

This paper explores supersymmetric composite dark matter models where bound states interact with the Standard Model, analyzing how supersymmetry breaking influences the spectrum and interactions of dark atoms.

Contribution

It introduces a general formalism to compute the spectrum of supersymmetric bound states and their interactions without detailed binding dynamics, highlighting features of non-relativistic supersymmetric states.

Findings

Spectrum with leading supersymmetry effects computed

Interactions with the Standard Model characterized

Benchmark models described

Abstract

Theories of dark matter that support bound states are an intriguing possibility for the identity of the missing mass of the Universe. This article proposes a class of models of supersymmetric composite dark matter where the interactions with the Standard Model communicate supersymmetry breaking to the dark sector. In these models supersymmetry breaking can be treated as a perturbation on the spectrum of bound states. Using a general formalism, the spectrum with leading supersymmetry effects is computed without specifying the details of the binding dynamics. The interactions of the composite states with the Standard Model are computed and several benchmark models are described. General features of non-relativistic supersymmetric bound states are emphasized.