Simulation results for a low energy nuclear recoil yields measurement in liquid xenon using the MiX detector

Abstract Measuring the scintillation and ionization yields of liquid xenon in response to ultra-low energy nuclear recoil events is necessary increase sensitivity experiments light dark matter. Neutron capture on can be used produce with energies below 0.3 keV NR via asymmetric emission γ rays during de-excitation. The feasibility an measurement using neutron was investigated for Michigan Xenon (MiX) detector, a small dual-phase time projection chamber that optimized high gain. Simulations MiX partial moderator, pulsed generator indicate population isolated from scattering events. Further, rate captures detector by varying thickness pulse width, frequency.