ANNIE, SBND, and ICARUS

Serving as the far detector for the Short-Baseline Neutrino (SBN) Program, ICARUS is a 470-ton liquid-argon time projection chamber (LArTPC) that images neutrino interactions from the Booster Neutrino Beam (BNB). Along with other detectors in the SBN suite, ICARUS is designed to address anomalous results from the LSND and MiniBooNE experiments, where excesses of electron-like events could possibly be interpreted as originating from light sterile neutrinos. To do so, ICARUS relies on precise measurements of electron neutrino interactions and must be capable of rejecting backgrounds that mimic this signal. Primary among these backgrounds is the production of neutral pions, which decay electromagnetically to photons. To characterize this background, as well as make use of the intrinsic calibration source that neutral pions present, the selection and reconstruction of muon neutrino charged-current interactions containing neutral pions is presented. This analysis is carried out using the fully-automated ICARUS machine learning reconstruction framework SPINE (Scalable Particle Imaging with Neural Embeddings) and features comparisons between simulation and data.