Speaker
Yixuan Lin
(NTHU)
Description
Primordial Black Holes (PBHs) are an attractive candidate for Dark Matter (DM) and there has been extensive experimental efforts to look for them. The so-called asteroid mass window $10^{17}$ g - $10^{23}$ g is particularly interesting,as current observations allow such PBHs to constitute all of DM.
In this work we discuss a scenario where PBHs are surrounded by a cloud of superradiantly produced bosons which in turn emit an approximately steady and monoenergetic flux of neutrinos in the MeV range. We show that this leads to a strong constraint in the upper range of the asteroid-mass range and beyond.