Search for Dark Matter induced 180Ta decay in MAJORANA*

The MAJORANA DEMONSTRATOR experiment ended its search for neutrinoless double beta decay in March 2021.  MAJORANA operates one of the world-leading ultra-low background experiments, and we modified this facility to search for one of the rarest isotope decays. The isotope ¹⁸⁰Ta is the only known isotope in nature that occurs in an isomeric state instead of the ground state. The isomeric decay is spin-suppressed, and its decay has never been observed. Beyond understanding the mechanisms that play a role in its decay, the rare state can be exploited to search for dark matter (DM) through a stimulated decay. In this project, we installed clean Ta samples between the HPGe detectors and are exploiting the ultra-low background environment to search for the nuclear decay and the possible induced emission by DM. We will describe the status of this search.