A new method for an improved anti-neutrino energy reconstruction with charged-current interactions in next-generation detectors

Abstract

We propose and validate a method of anti-neutrino energy reconstruction for charged-current meson-less interactions on composite fully active targets containing hydrogen (such as hydrocarbon scintillator), which is largely free of the poorly understood nuclear effects that usually distort and bias attempts to measure neutrino energy. The method is based on the precise event-by-event measurement of the outgoing neutron kinetic energy and the subsequent assessment of the momentum imbalance on the plane transverse to the incoming anti-neutrino direction. For an anti-neutrino flux peaked at around 600 MeV measured using a finely grained $2\times 2\times 2$ m${}^3$ 3D scintillator tracker the neutrino energy resolution is expected to be around 7%, compared to the 15% expected using traditional neutrino energy reconstruction techniques. Analogous results can be obtained for other detectors with similar characteristics.

arXiv comment11 pages, 13 figures

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• Status of Lattice QCD Determination of Nucleon Form Factors and their Relevance for the Few-GeV Neutrino Program
• The SuperFGD Prototype Charged Particle Beam Tests
• Performances of a resistive MicroMegas module for the Time Projection Chambers of the T2K Near Detector upgrade
• A novel polystyrene-based scintillator production process involving additive manufacturing
• Probing nuclear effects with neutrino-induced charged-current neutral pion production
• Neutrino energy reconstruction from semi-inclusive samples
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• Neutrino-hydrogen interactions with a high-pressure time projection chamber
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• SuperFGD prototype time resolution studies
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• Scintillator cubes for 3D neutrino detector SuperFGD
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• A substandard candle: the low-$\nu$ method at few-GeV neutrino energies
• Longitudinal kinematic imbalances in neutrino and antineutrino interactions for improved measurements of neutrino energy and the axial vector form factor
• New 3D fine-grained scintillation detector for the T2K experiment
• A New Generation of Neutrino Cross Section Experiments: Challenges and Opportunities