First Measurements of Differential Cross Sections In Kinematic Imbalance Variables With The MicroBooNE Detector
ORAL
Abstract
Making high-precision measurements of neutrino oscillation parameters requires an unprecedented understanding of neutrino-nucleus scattering. In this presentation, we present the first muon neutrino charged current double-differential cross sections in kinematic imbalance variables. These variables characterize the imbalance in the plane transverse to an incoming neutrino. We use events with a single muon above 100 MeV/c, a single final state proton above 300 MeV/c, and no recorded final state pions. Thus, these variables act as a direct probe of nuclear effects such as final state interactions, Fermi motion, and multi-nucleon processes. We also present a complementary ongoing analysis using electron neutrinos. This channel is of the utmost importance for the extraction of neutrino oscillation parameters by making high-precision measurements. Our measurements allow us to constrain systematic uncertainties associated with neutrino oscillation results performed by near-future experiments of the Short Baseline Neutrino (SBN) program, as well as by future large-scale experiments like DUNE.
–
Publication: 1. The MicroBooNE Collaboration. First double-differential measurement of kinematic imbalance in neutrino interactions with the MicroBooNE detector. Physical Review Letters.2023 Sept 6;131(10). doi:10.1103/physrevlett.131.101802 <br>2. The MicroBooNE Collaboration. Multidifferential cross section measurements of νμ-argon quasielasticlike reactions with the MicroBooNE detector. Physical Review D. 2023 Sept 6;108(5). doi:10.1103/physrevd.108.053002 <br>3. The MicroBooNE Collaboration. Measurement of nuclear effects in neutrino-argon interactions using generalized kinematic imbalance variables with the MicroBooNE detector. ArXiv [Preprint] 2023. Version 1. https://doi.org/10.48550/arXiv.2310.06082
