1–5 Jun 2026
Paraninfo, University of Zaragoza
Europe/Madrid timezone

The Dark Matter-Baryon Coincidence: Problem, Solutions, and Signatures

1 Jun 2026, 12:10
20m
Pilar Sinués

Pilar Sinués

Oral presentation Theory & pheno Parallel Session - Theory/Phenomenology

Speaker

Yi Chung (Institute for Basic Science)

Description

The comparable abundances of dark matter and baryons, known as the dark matter–baryon coincidence, call for an explanation that connects the dark sector to the QCD sector. In this talk, I will present a detailed analysis showing why this coincidence is nontrivial and points toward a strongly coupled dark sector with $\mathcal{O}(1)$-GeV asymmetric dark baryons as dark matter. Based on this insight, we examine the interplay between direct detection experiments and searches for feebly interacting particles, highlighting how these complementary probes can test and distinguish different solutions to the coincidence problem.

Main Contribution topic Theory / Phenomenology
Secondary contribution topic Cosmology Dark Matter

Author

Yi Chung (Institute for Basic Science)

Presentation materials