August 29, 2022 to September 4, 2022
America/New_York timezone

The SPICE and HeRALD experiments for sub-GeV dark matter direct detection

Sep 2, 2022, 11:00 AM
30m
Palm Ballroom 4

Palm Ballroom 4

Parallel session talk Dark Matter DM: Dark Matter

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

Presentation materials