Primordial Intermediate Mass Black Holes as Dark Matter

Abstract

Among particle theory candidates for the dark matter constituents. axions and WIMPs are the most popular. In this talk we discuss these then focus on our preferred astrophysical candidate, the Primordial Intermediate Mass Black Holes in the acronym $DM=PIMBHs$. The earliest experimental confirmation may come from microlensing of the Magellanic Clouds at the LSST 8m telescope in the mid-2020s, or possibly a few years earlier in 2021 from work being pursued, using DECam data from the smaller Blanco 4m tescope, at LLNL.