Journal
PHYSICAL REVIEW D
Volume 105, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.105.032010
Keywords
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Funding
- European Union [754496]
- Russian Science Foundation [19-12-00325]
- Ministry of Science and Higher Education of the Russian Federation [075-15-2020778]
- Agence Nationale de la Recherche (ANR), France [ANR10-LABX-0038, ANR-11-IDEX-000301, ANR-19-CE31-0001]
- CNRS/IN2P3
- CEA
- DOE, USA
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Future accelerator-based measurements of neutrino oscillations face challenges in modeling few-GeV neutrino-nucleus interactions. The upgraded ND280 detector of the T2K experiment aims to overcome these uncertainties by directly confronting neutrino interaction uncertainties and improving the sensitivity to nuclear effects.
The most challenging and impactful uncertainties that future accelerator-based measurements of neutrino oscillations must overcome stem from our limited ability to model few-GeV neutrino-nucleus interactions. In particular, it is crucial to better understand the nuclear effects which can alter the final state topology and kinematics of neutrino interactions, inducing possible biases in neutrino energy reconstruction. The upgraded ND280 near detector of the T2K experiment will directly confront neutrino interaction uncertainties using a new suite of detectors with full polar angle acceptance, improved spatial resolutions, neutron detection capabilities and reduced tracking thresholds. In this manuscript we explore the physics sensitivity that can be expected from the upgraded detector, specifically focusing on the additional sensitivity to nuclear effects and how they can be constrained with future measurements of kinematic variables constructed using both outgoing lepton and nucleon kinematics.
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