Speaker
Daniel Baxter
(Fermi National Accelerator Laboratory)
Description
Over the past five years, almost all experiments operating novel sensors with thresholds lower than keV energies have observed large excess rates over expected radioactive backgrounds. These excess rates have been studied in detail over this time, in part through the EXCESS Workshop series. While many of these excess rates share common features, they are not yet fully understood. Moreover, a single common origin is excluded, instead favoring a suite of new background processes unlocked through lower energy thresholds. Multiple efforts are underway to control these excess rates, which will otherwise continue to limit low-threshold detection of dark matter and CEvNS and potentially impact development of reliable quantum computers.
Primary author
Daniel Baxter
(Fermi National Accelerator Laboratory)
