Speaker
Description
The TESSERACT collaboration will search for dark matter particles below the proton mass through interactions with multiple novel, ultra-sensitive detectors. Each detector technology will use athermal phonon-sensitive Transition Edge Sensors to read out the signals deposited in the various target materials. In this talk I will present on the recent progress made toward reaching this goal. First, I will discuss the recent progress from each of these detector technologies as they prepare for underground deployment in the coming years. Then, I will showcase the achievements made towards making world-leading energy resolution TESs. I will detail new insights on the “low energy excess” background and parasitic power relevant to cryogenic detectors, highlighted by the results of TESSERACT’s first above-ground dark matter search, which yielded world-leading sensitivity to dark matter below 100 MeV/c^2. I will finish with a look towards installation at Modane Underground Laboratory in 2028.
