Speaker
Description
The Scintillating Bubble Chamber (SBC) experiment will combine the well-established liquid argon and bubble chamber technologies to search for low-mass dark matter. SBC benefits from the excellent electron-recoil insensitivity and alpha-neutron discrimination inherent in bubble chambers with the addition of energy reconstruction provided from the scintillation signal. Noble liquids can be superheated to a much greater extent than the molecular fluids used by past bubble chambers for dark matter searches while retaining insensitivity to electron recoils, translating to a targeted energy threshold of 100 eV. Two functionally-similar detectors are being built. One, under construction at Fermilab, will be used for engineering and calibration studies, and a potential measurement of the coherent elastic neutrino-nucleus scattering on argon. A low-background version for the dark matter search will be operated at SNOLAB. The status of the SBC Fermilab and SNOLAB detectors, in addition to the projected dark matter sensitivity, will be discussed.
