Measurement of the Electron Neutrino Charged-current Interaction Rate on Water with the T2K ND280 pi-zero Detector

Abstract

This paper presents a measurement of the charged current interaction rate of the electron neutrino beam component of the beam above $1.5$~GeV using the large fiducial mass of the T2K ${\pi }^0$ detector. The predominant poriton of the ${\nu }_e$ flux ($\sim$85 %) at these energies comes from kaon decays. The measured ratio of the observed beam interaction rate to the predicted rate in the detector with water targets filled is 0.89 $\pm$ 0.08 (stat.) $\pm$ 0.11 (sys.), and with the water targets emptied is 0.90 $\pm$ 0.09 (stat.) $\pm$ 0.13 (sys.). The ratio obtained for the interactions on water only from an event subtraction method is 0.87 $\pm$ 0.33 (stat.) $\pm$ 0.21 (sys.). This is the first measurement of the interaction rate of electron neutrinos on water, which is particularly of interest to experiments with water Cherenkov detectors.

11 pages, 6 figures, as accepted to PRD

References in corpus (7)

• Big-Bang Nucleosynthesis
• The T2K Neutrino Flux Prediction
• Differences in Quasi-Elastic Cross-Sections of Muon and Electron Neutrinos
• Measurement of Ratios of ${\nu }_{\mu }$ Charged-Current Cross Sections on C, Fe, and Pb to CH at Neutrino Energies 2-20 GeV
• Measurement of single charged pion production in the charged-current interactions of neutrinos in a 1.3 GeV wide band beam
• Measurement of the intrinsic electron neutrino component in the T2K neutrino beam with the ND280 detector
• Measurement of inclusive ${\pi }^0$ production in the Charged-Current Interactions of Neutrinos in a 1.3-GeV wide band beam

Cited by in corpus (6)

• QED radiative corrections for accelerator neutrinos
• Measurement of ${\bar{\nu }}_{\mu }$ and ${\nu }_{\mu }$ charged current inclusive cross sections and their ratio with the T2K off-axis near detector
• Measurement of Electron Neutrino and Antineutrino Cross Sections at Low Momentum Transfer
• Towards a Unified Model of Neutrino-Nucleus Interactions
• Measurement of the Flux-Averaged Inclusive Charged-Current Electron Neutrino and Antineutrino Cross Section on Argon using the NuMI Beam and the MicroBooNE Detector
• A New Generation of Neutrino Cross Section Experiments: Challenges and Opportunities