2020-01-08 14:00  P7F

Low-Mass Dark Matter Search Beyond SuperCDMS

Yen-Yung Chang

I will begin by summarizing the latest result from the final surface search for low-mass dark matter (DM) with SuperCDMS single-charge sensitive "HVeV" detector. I will discuss the theoretical impact, technology basis, and share our experience in sub-ionization threshold detector and known challenges for future low-mass/low-threshold DM searches. Motivated by the first part of the talk, I will then propose Kinetic Inductance Detector (KID) as a promising technology for future searches. I will introduce the principle of KID, compare it to current technologies, and report our R&D status at Caltech/NASA-JPL. Based on obtained results, we project KID-based detector to achieve O(10-100) meV threshold with much more flexible detector architecture, and therefore opens the possibility to low-threshold target materials beyond semiconductors.