Description
The Deep Underground Neutrino Experiment aims to better understand the physics governing neutrinos using a number of different types of detectors and measurement devices. One such detector, the liquid argon time projection chamber, records the charge deposited and light emitted by neutrino interactions to measure the topology of these events. However, it is expected that the interactions in these time projection chambers located near the neutrino source will occur with such high density that resolving overlapping events will be difficult. To alleviate this problem, we propose a new model architecture, called Y-Net, that utilizes the time-varying scintillation light to improve instance segmentation accuracy on these neutrino interactions. Experiments on simulated neutrino interaction events show that by integrating the timing information carried by scintillation light, we are able to improve performance over existing techniques on the most difficult instances of piled-up interactions.