Speaker
Description
DEAP-3600 is a liquid argon (LAr) dark matter detector. Its chief advantage lies in the success of pulse-shape discrimination (PSD) at suppressing electromagnetic backgrounds from scintillation events in the LAr. The pulse-shapes of LAr Scintillation serve as a basis for PSD and are modeled as a convolution of detector effects and LAr scintillation physics, the latter of which consists of the singlet and triplet lifetimes of the beta decay of the isotope Ar39. There is evidence in the data that alongside the singlet and triplet lifetimes there is a third, intermediate, component currently unaccounted for. The subject of this presentation is the addition of an intermediate component which could potentially see the improvement of the fidelity of simulations of important PSD variables.
