Speaker
Description
Superradiance provides a unique opportunity for investigating dark sectors as well as primordial black holes (PBHs), which themselves are candidates for dark matter (DM) over a wide mass range. Using axion-like particles (ALPs) as an example, we show that line signals emerging from a superradiated ALP cloud combined with Hawking radiation from PBHs, along with microlensing observations lead to complementary constraints on parameter space combinations including the ALP-photon coupling, ALP mass, PBH mass, and PBH DM fraction. For the asteroid mass range
