Speaker
Joanna Wuko
(UMass Amherst)
Description
The TESSERACT experiment searches for sub-GeV dark matter with multiple cryogenic target materials and technologies. The HeRALD technology uses superfluid 4He as a target material for dark matter-nucleon scattering. Phonons produced by an atomic recoil trigger the evaporation of 4He atoms into the vacuum. These atoms are then detected calorimetrically using a Transition Edge Sensor (TES) array suspended above the 4He surface. This TES array has a multi-channel readout which allows for the rejection of heat-only events in the sensors themselves. In this talk I will summarize the R&D progress of the HeRALD experiment. Deployment at Modane Underground Laboratory will begin in 2028.
Author
Joanna Wuko
(UMass Amherst)
