Pulse Shape Discrimination Methods for Background Rejection in LEGEND-200

The LEGEND experimental program is a phased search for neutrinoless double-beta decay in the ⁷⁶Ge isotope and aims for a discovery potential at a half life of 10²⁸ years. The first phase, LEGEND-200, is operating with 142 kg of high-purity germanium detectors and has been taking low-background data for over a year. LEGEND-200 has a background index goal of below 0.5 cts/(FWHM t yr) so effective background mitigation techniques are necessary. Background events from Compton scattered gammas in the detector bulk, and alphas and betas on the detector surfaces can populate the region-of-interest for a 0νββ signal. However, these types of background events have characteristic pulse shapes that can be used to separate them from potential signal candidates. LEGEND-200 has developed multiple pulse shape discrimination (PSD) techniques to identify and mitigate these background events. This talk will detail the PSD methods used and their performance in the first dataset for LEGEND-200.