Speakers
Description
The Scintillating Bubble Chamber (SBC) Collaboration is constructing a 10-kg liquid argon bubble chamber with scintillation readout. The goal for this new technology is to achieve a nuclear recoil detection threshold as low as 100 eV with near complete discrimination against electron recoil events. Following initial characterization in a near-surface site at Fermilab, an underground deployment is planned at SNOLAB for a dark matter search. The sub-keV nuclear recoil threshold would enable sensitivity to GeV-mass WIMPs, and a future ton-scale version could probe for dark matter down to the solar neutrino floor. The same technology has been considered for a first measurement of coherent elastic neutrino nucleus scattering (CEvNS) with reactor neutrinos. With high statistics and high signal-to-background, precision searches for beyond-standard-model physics would be possible. I will discuss the physics case for the liquid argon bubble chamber technology, and SBC studies of backgrounds and nuclear recoil calibration approaches.
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