  Neutrinoless double beta decays in liquid xenon produce a significant amount
of Cherenkov light, with a photon number and angular distribution that
distinguishes these events from common backgrounds. A GEANT4 simulation was
used to simulate Cherenkov photon production and measurement in a liquid xenon
detector and a multilayer perceptron was used to analyze the resulting
distributions to classify events based on their Cherenkov photons. Our results
show that a modest improvement in the sensitivity of neutrinoless double beta
decay searches is possible using this technique, but the kinematics of the
neutrinoless double beta decay and electron scattering in liquid xenon
substantially limit this approach.
