Description
Author and Presenter: Jae Hyeok
Abstract: In this talk, I present the potential use of primordial black holes (PBHs) as probes of the dark sector. Through Hawking radiation, black holes emit all particle species with masses below their Hawking temperature, providing a unique and gravitationally universal production mechanism. PBHs can reach Hawking temperatures of up to tens of MeV, enabling the emission of dark sector particles with masses up to this energy scale. By analyzing the gamma-ray spectrum from PBHs, we can probe dark sector particles that produce observable photon signals. Moreover, by studying the mass distribution of evaporating PBHs, it may be possible to access even heavier dark sector particles, including those without any direct couplings to the visible sector.
