A Path to the Direct Detection of sub-GeV Dark Matter Using Calorimetric Readout of a Superfluid ${}^4$He Target

S. A. Hertel, A. Biekert, J. Lin +2

A promising technology concept for sub-GeV dark matter detection is described, in which low-temperature microcalorimeters serve as the sensors and superfluid ${}^4$He serves as the t…