Speaker
Description
The Scintillating Bubble Chamber (SBC) collaboration is developing liquid-noble bubble chambers sensitive to sub-keV nuclear recoils. These detectors combine the excellent electron-recoil insensitivity inherent in bubble chambers with the ability to reconstruct energy based on the scintillation signal for further background suppression. The targeted nuclear recoil threshold of 100 eV is made possible by the high level of superheat attainable in noble liquids while remaining electron-recoil insensitive. In order to verify this reduced threshold, the SBC collaboration is building two functionally-identical 10 kg detectors. The first, SBC-LAr10, soon-to-be operational at Fermilab, will be used for engineering and calibration studies and has further potential in measurements of the coherent elastic neutrino-nucleus scattering on argon. The second detector, SBC-SNOLAB, for a low-background dark matter search will be operated underground at SNOLAB. An overview of scintillating liquid-noble bubble chambers and the physics potential of SBC-SNOLAB and SBC-LAr10 will be presented.
