Electronics Response Analysis of Germanium Detector Signals for LEGEND-200

Neutrinoless double-beta decay ((0vββ)) is a proposed nuclear process which transforms two neutrons into two protons, two electrons, and no anti-neutrinos. Discovery of this process would help us understand the imbalance between matter and anti-matter in the universe. The Large Enriched Germanium Experiment for Neutrinoless Double Beta Decay (LEGEND) searches for this process using p-type point contact high purity germanium detectors enriched in 76Ge for their characteristic high energy resolution and their ability to distinguish signal and background events using pulse shape analysis techniques. However, nonideal readout electronics can induce overshoots and ringing artifacts in output waveforms. This decreases the ability for pulse shape discrimination to accurately veto background signals, decreasing detector sensitivity. Previous models of nonideal signal characteristics have been limited to describing purely exponential behavior using single and double pole-zero transfer functions. This project proposes a more general model capable of canceling damped sinusoidal artifacts using complex pole-zero transfer functions, improving pulse shape discrimination accuracy and detector sensitivity.