Gravitational Waves from the Early Universe: A Primordial Black Hole Perspective

by Dr Yi Chung (IBS CTPU)

Tuesday 20 Jan 2026, 16:00 → 17:30 Asia/Seoul

Room 1423 (KIAS)

Title: A new approach to the Dark Matter-Baryon coincidence problem

Speaker: Yi Chung (IBS CTPU)

Abstract: 

The comparable abundances of dark matter and baryons, known as the Dark Matter-Baryon coincidence, call for an explanation that relates the dark sector to the QCD sector. In models of Asymmetric Dark Matter, the number densities of both sectors are naturally similar. However, a complete solution should also include a mechanism to ensure comparable masses. In this talk, I will present a new mechanism where the dark matter mass also originates from the QCD vacuum, naturally placing it at the GeV scale, comparable to baryon masses. The UV completion and relevant phenomenology will also be discussed.