Speaker
Scott Hertel
(U. Massachusetts, Amherst)
Description
The SPICE and HeRALD experiments aim to probe dark matter (DM) masses down to 10 MeV, with upgrade paths to sub-MeV masses. The project is currently in a preparatory R&D phase focused on first pushing Transition Edge Sensor (TES) recoil energy thresholds into the sub-eV regime, and then applying this next generation of sensors to a variety of well-motivated target materials. The HeRALD portion of the effort employs a superfluid 4He target. Helium's nuclear recoil sensitivity benefits from both a low-mass target nucleus and a unique quantum evaporation phonon readout method. The complementary SPICE effort employs polar crystal target materials, motivated by their strong couplings to dark photon mediated DM.
Primary authors
Scott Hertel
(U. Massachusetts, Amherst)
SPICE/HeRALD Collaboration
