Effect of Electronic Response on Pulse Shape Discrimination for the LEGEND Experiment

LEGEND is searching for neutrinoless double-beta decay, a rare process whose discovery would demonstrate that the neutrino is its own anti-particle. LEGEND is a low background experiment that uses an array of high purity germanium detectors to search for this process in ⁷⁶Ge. LEGEND-200 has already taken data and the experiment intends to observe ~ 200 kg of detectors for about five years in a background free environment to achieve a half-life sensitivity of 10²⁷. One key technique for achieving the necessary low backgrounds is pulse shape discrimination (PSD) using detector signals to distinguish between background-like and signal-like event topologies. This poster investigates the effect of the signal electronics response on the PSD parameters observed in LEGEND-200 data. We used digital signal processing to modify the electronic response to add a ringing component. Our investigation focuses on evaluating the distributions of key parameters in signal waveforms with and without this ringing effect.