Friday Phenomenology Group Seminars
Upcoming Events
Black holes formed in the early universe can make up all or part of dark matter. I will review some scenarios for their formation, especially those that arise from common models of physics…
Past Events
The phenomenon of cosmological gravitational particle production (CGPP) occurs during and after inflation as light fields “feel” the cosmological expansion and their mode functions evolve non-…
The near equality of the dark matter and baryon energy densities is a remarkable coincidence, especially when one realizes that the baryon mass is exponentially sensitive to UV parameters in the…
We study the solar emission of light dark sector particles that self-interact strongly enough to self-thermalize.
Dark matter self interactions can leave distinctive signatures on the properties of satellite galaxies around Milky Way-like hosts.
Heavy axions can arise in the context of Grand Unified theories where a confining dark gauge group unifies with the Standard Model (SM) gauge group.
There has been heated debate in the astronomical community about whether some ancient galaxies observed by JWST are far too large to have formed in our standard cosmology.