Speaker
Harold Pinckney
(University of Massachusetts)
Description
HeRALD, the Helium Roton Apparatus for Light Dark Matter, will use a superfluid 4He target to study the sub-GeV dark matter parameter space. The HeRALD design is sensitive to all signal channels produced by nuclear recoils in superfluid helium: singlet and triplet excimers, as well as phonon-like excitations of the superfluid medium. Excimers are detected via calorimetry in and around the superfluid helium. Phonon-like vibrational excitations eject helium atoms from the superfluid-vacuum surface which are detected by adsorption onto calorimetry above the surface. I will discuss the design, sensitivity projections, and ongoing R&D for the HeRALD experiment.
Primary author
Harold Pinckney
(University of Massachusetts)
