New Measurements of Electron Neutrino Differential Charged-Current Cross Sections on Argon with Protons in the Final State in the MicroBooNE Detector

MicroBooNE, located at the Fermi National Accelerator Laboratory, is an 85-tonne liquid argon time-projection chamber designed to study neutrinos from the Booster Neutrino Beam and Neutrinos at the Main Injector (NuMI) beam. Understanding neutrino-nucleon interactions is essential for improving the accuracy of neutrino event generators, which are critical for modelling neutrino behaviour and interpreting data from oscillation experiments. The NuMI beam's high electron neutrino flux relative to its muon neutrino flux makes it particularly suited to probe these interactions. This talk presents new single-differential cross-section measurements of charged-current electron neutrino interactions on argon with protons and no pions in the final state using data from the NuMI beam running in neutrino and antineutrino modes. The measurements are presented as functions of several kinematic variables: outgoing electron energy, total visible energy, and the opening angle between the electron and the most energetic proton. Additionally, the interaction rate as a function of proton multiplicity is reported. These results are compared to theoretical predictions generated by widely used neutrino event generators.