A Reconstruction Algorithm based on Charge Flow for use in the PiZero Detector at T2K

The Tokai-to-Kamioka (T2K) experiment located in Japan is a long-baseline neutrino oscillation experiment that uses a beam of muon neutrinos passing through a detector (ND280) 280 meter from the beam origin and then through the Super-Kamiokande detector 295 km away. The primary goal of T2K is to measure the mixing angle, $\theta_{13}$, of the first and third generation neutrinos using the $\nu_{e}$ appearance channel. The measurement of the $\pi^{0}$ is crucial as misidentified $\pi^{0}$s are the primary physics background to the $\nu_{e}$ signal at Super-K. The production rate of $\pi^{0}$s in neutral current and $\pi^{0}$ reactions in water will be measured in the PiZero detector component of ND280 and extrapolated to the Super-K detector. We will describe a method of reconstruction based on event charge flow for potential use in the PiZero detector and how it could be used as a starting point for a multivariate analysis of $\pi^{0}$ production in the near detector.