A new idea for relating the asymmetric dark matter mass scale to the proton mass
Abstract
Asymmetric dark matter is a well-motivated approach to explain the apparent coincidence between the relic densities of visible and dark matter, D 5.4b. A complete explanation requires two components, a relation between the particle masses of the dark and visible matter, and a second relation between the number densities in each sector. In this work, we propose a new mechanism to address the former. We consider an extended SU(3)1 × SU(3)2 colour group in the visible sector, with QCD embedded as the diagonal subgroup. A Z2 exchange symmetry then relates SU(3)2 to a dark, confining SU(3)D sector. The dark matter is a composite state of dark fermions transforming in the fundamental representation of SU(3)D. The spontaneously broken Z2 symmetry ultimately leads to a relation between the QCD and dark gauge couplings which, for suitable field content, gives rise to confinement scales of the same order of magnitude. The mechanism leads to a rich particle spectrum above the TeV scale which could be probed at future experiments. The model also naturally includes an axion solution to the strong CP problem.
Turn this paper into a full lesson
ArcXiv compiles a staged curriculum from this paper: 8-12 lessons across beginner → advanced, synthesised section guides, visuals, flashcards, a quiz, exercises, and on-demand deep dives per section. Grounded in the abstract, never invented.