Fri, April 4, 2025
11:30 am - 12:30 pm
Price Place PRB M2005
We will have our weekly meeting on Friday at 11:30 AM (EST) in Price Place (M2005 PRB) and over Zoom.
This week we have a guest talk by Andrew Gustafson, graduate student at Virginia Tech, who will be giving a seminar talk over Zoom. The talk title and abstract are listed below.
Title: Impact of Dark Matter Scattering on High-Energy Particles
Abstract: Dark matter (DM) is known to comprise most of the mass in the universe, yet its exact nature remains a mystery. DM direct detection experiments search for the interactions of low energy () DM with electrons and nuclei. While these experiments set impressive constraints, there are many DM models which cannot be probed in this way i.e. light DM, DM with mass splittings, DM with primary couplings to other Standard Model (SM) particles. In this talk, I will explore higher energy DM interactions which result in measurable impacts on relativistic astrophysical SM particles. I will begin inelastic dark matter around an Active Galactic Nuclei and study the energy loss off the cosmic rays. Next, I will discuss how neutrino-coupled dark matter can lead to a diffuse neutrino flux from past Milky way supernovae. We will see that observations from multi-messenger astronomy place constraints on the particle properties of DM.