Search for Bosonic Dark Matter with the MAJORANA DEMONSTRATOR

The MAJORANA DEMONSTRATOR is a neutrinoless double-beta decay experiment operating at the 4850' level of the Sanford Underground Research Facility that uses modular arrays of High-Purity germanium detectors enriched in ⁷⁶Ge in an ultra-low background environment. The DEMONSTRATOR has a low energy program that is capable of probing a variety of physics beyond the standard model; it has previously produced limits on bosonic dark matter candidates that come in two weakly coupling varieties, vector and pseudoscalar (axion-like). These particles would manifest as low energy peaks at their rest mass in the detector spectrum. I describe ongoing efforts in the MAJORANA DEMONSTRATOR's bosonic dark matter campaign, specifically to improve the limits on the coupling parameters of these dark matter candidates in the mass range 9 – 100 keV.