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Description
The Short Baseline Near Detector (SBND) is a 112 ton of liquid argon time projection chamber (LArTPC), and it is the near detector of the Short-Baseline Neutrino (SBN) program located at Fermilab, USA. The primary goal of the program is to perform high-precision searches for neutrino oscillations in the short-baseline regime and address the sterile neutrino hypothesis. This work focuses on the SBND study of the $\nu_\mu$ charged-current neutral pion ($\nu_\mu$ CC$\pi^0$) interaction channel, where the neutral pions decay almost exclusively into two photons. The two photon showers from a $\pi^0$ decay can merge together or be misidentified, closely mimicking an electron shower signature in the LArTPC. Therefore, the photons from these decays constitute a major background in electron neutrino appearance and oscillation analyses. This makes the accurate reconstruction of these photons indispensable. This work illustrates a first study of the Pandora reconstruction framework's performance on the $\nu_\mu\text{CC}\pi^0$ channel, with a focus on $\pi^0$ invariant mass characterization.