July 29, 2019 to August 2, 2019
Northeastern University
US/Eastern timezone

HeRALD: Dark Matter Direct Detection with Superfluid 4He

Aug 1, 2019, 4:17 PM
West Village G 102 (Northeastern University)

West Village G 102

Northeastern University

Oral Presentation Dark Matter Dark Matter


Harold Pinckney (University of Massachusetts at Amherst)


HeRALD, the Helium Roton Apparatus for Light Dark Matter, will use a superfluid helium 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 and roton vibrational excitations. Excimers are detected via calorimetry in and around the superfluid helium. 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 R&D for the HeRALD experiment.

Primary author

Harold Pinckney (University of Massachusetts at Amherst)

Presentation materials