Document Type
Article
Publication Date
2-1-2023
Abstract
Neutrino oscillation experiments require a precise measurement of the neutrino energy. However, the kinematic detection of the final-state neutron in the neutrino interaction is missing in current neutrino oscillation experiments. The missing neutron kinematic detection results in a smaller detected neutrino energy than the true neutrino energy. A novel 3D-projection scintillator tracker, which consists of roughly ten million active cubes covered with an optical reflector, is capable of measuring the neutron kinetic energy and direction on an event-by-event basis using the time-of-flight technique thanks to the fast timing, fine granularity, and high light yield. The ν¯μ interactions tend to produce neutrons in the final state. By measuring the neutron kinetic energy, the ν¯μ energy can be reconstructed better, allowing a tighter incoming neutrino flux constraint. This article shows the detector's ability to reconstruct neutron kinetic energy and the ν¯μ flux constraint achieved by selecting the charged-current interactions without mesons or protons in the final state.
Publication Source (Journal or Book title)
Physical Review D
Recommended Citation
Gwon, S., Granger, P., Yang, G., Bolognesi, S., Cai, T., Danilov, M., Delbart, A., De Roeck, A., Dolan, S., Eurin, G., Razakamiandra, R., Fedotov, S., Fiorentini Aguirre, G., Flight, R., Gran, R., Ha, C., Jung, C., Jung, K., Kettell, S., Khabibullin, M., Khotjantsev, A., Kordosky, M., Kudenko, Y., Kutter, T., Maneira, J., Manly, S., Martinez Caicedo, D., Mauger, C., McFarland, K., McGrew, C., Mefodev, A., Mineev, O., & Naples, D. (2023). Neutron detection and application with a novel 3D-projection scintillator tracker in the future long-baseline neutrino oscillation experiments. Physical Review D, 107 (3) https://doi.org/10.1103/PhysRevD.107.032012