Geant4 study of the prototype AT-TPC experiment searching for the X17 boson resonance

An experiment was conducted at the tandem facility of Notre Dame using the prototype Active-Target Time-Projection Chamber (pAT-TPC) to search for the X17 resonance via the ⁷Li(p,g)⁸Be reaction. The angular distribution of the electron and positron pair from the g conversion was chosen to identify the possible boson resonance. A Geant4 Monte Carlo simulation is being developed to describe the experimental setup, understand the background and provide information on the efficiency and resolution of the system. Preliminary results from the simulation and data analysis will be presented and discussed.