Searching for Neutrinoless Double Beta Decay in ⁷⁶Ge

Despite being the most abundant particle in the universe with mass, several key characteristics of the neutrino remain unknown. A theorized decay process called neutrinoless double beta decay (0νββ) offers a unique method to probe properties of the mysterious neutrino, including its quantum nature and mass. A number of double beta decaying isotopes have the potential to exhibit this rare decay with ⁷⁶Ge, ¹³⁰Te and ¹³⁶Xe being the leading choices for these searches. High purity Ge radiation detectors are known for their outstanding energy resolution and can be enriched in ⁷⁶Ge which provides the benefit of the crystal being both the source and detector of 0νββ. In addition, the development of a point contact geometry reduces the noise in detector readout while simultaneously allowing for advanced pulse shape discrimination techniques to eliminate many backgrounds external to the detector. This talk will focus on 0νββ searches in the ⁷⁶Ge isotope including past campaigns from GERDA and the MAJORANA DEMONSTRATOR as well as the current and future searches from the Large Enriched Germanium Experiment for Neutrinoless double-beta Decay (LEGEND) collaboration.