Speaker
Description
Neutrino-nucleus cross section measurements are needed to improve interaction modeling to enable precision oscillation measurements at the Deep Underground Neutrino Experiment (DUNE). The resonance channel is especially important to this goal as it comprises the dominant source of neutrino interactions at the peak neutrino energy observed by DUNE. We present the first measurement of muon neutrino charged current resonance-like interactions on argon in transverse kinematic imbalance (TKI) variables, which are highly sensitive to the modeling of final state interactions. This measurement uses a generalization of TKI variables to include the momentum contributions of the final state muon, leading proton, and neutral pion. It leverages a new muon energy reconstruction algorithm based on the principle of multiple coulomb scattering to reconstruct the energy of exiting muons, enhancing the statistics and phase space coverage of the measurement. Comparisons are made to a number of leading model predictions, with their performance contrasted across different phase space regions of the measurement.