A high-throughput screen of about 1,000 Materials Project compounds identifies LiMoO2, CaAsAu, Bi2TeO2, and others as the most promising targets for sub-GeV dark matter detection via electron scattering and absorption.
Broad-Range Directional Detection of Light Dark Matter in Cryogenic Ice
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abstract
We propose hexagonal ice (H$_2$O) as a new target for light dark matter (DM) direct detection. Ice, a polar material, is suitable for single phonon detection through DM scattering for which we consider light dark photon and light scalar mediator models. We report a rate sensitivity down to a DM mass of $\sim$keV, constituting a broader mass range than other promising candidates. We find better sensitivity for near-term experimental thresholds from the presence of high-frequency phonons. These advantages, and ice's availability, make it highly promising for single-phonon detection.
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First High-Throughput Evaluation of Dark Matter Detector Materials
A high-throughput screen of about 1,000 Materials Project compounds identifies LiMoO2, CaAsAu, Bi2TeO2, and others as the most promising targets for sub-GeV dark matter detection via electron scattering and absorption.