Neutrinos and Dark Matter at Low Energies in Liquid Argon - New results from LLNL

Samuele Sangiorgio


Characterization of the low-energy nuclear recoil response of liquid argon is necessary to understand the sensitivity of argon-based detectors to dark matter WIMPs and coherent elastic neutrino-nucleus scattering. To this end, a dual-phase liquid-argon detector was developed at LLNL to demonstrate low-threshold capabilities and measure low-energy nuclear recoils. Very recently, we performed the first measurements ever of nuclear recoils in liquid argon below 10 keV. I will discuss the experimental setup for these measurements, our preliminary findings and implications for dark matter and neutrino searches.