Exploring Cosmic Background Events Appearing in NOvA Far Detector Neutral Current Selection [Poster]
2022
Abstract
interactions. In this analysis, neutrino-Nucleus (νµ→N) NC π0 interactions with total pion energy greater then 0.3 GeV are studied by selecting two prong events with two final state photons as determined by prong based Convolutional Visual Networks (CVN). The analysis is performed on 3.54x1021 Protons On Target (POT) of NONA Near Detector simulated data and compared to 8.09x1020 POT of data. Optimization of the selection based on fractional cross-section uncertainty and an initial energy resolution study of the final sample are presented. The final 2 prong selection using prong based CVN gave a purity of 74%, selection efficiency of ~ 1.8%, and an expected (NC) νµ,e neutral pion cross section of ~ 15.2%.
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