Measurement of the electron neutrino charged-current interaction rate on water with the T2K ND280 π0 detector



Abe, K, Adam, J, Aihara, H, Andreopoulos, C ORCID: 0000-0003-2020-8215, Aoki, S, Ariga, A, Assylbekov, S, Autiero, D, Barbi, M, Barker, GJ
et al (show 336 more authors) (2015) Measurement of the electron neutrino charged-current interaction rate on water with the T2K ND280 π0 detector PHYSICAL REVIEW D, 91 (11). 112010-. ISSN 1550-7998, 1550-2368

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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 π0 detector. The predominant portion of the νe flux (∼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±0.08(stat)±0.11(sys), and with the water targets emptied is 0.90±0.09(stat)±0.13(sys). The ratio obtained for the interactions on water only from an event subtraction method is 0.87±0.33(stat)±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.

Item Type: Article
Additional Information: 11 pages, 6 figures, as accepted to PRD
Uncontrolled Keywords: hep-ex, hep-ex
Depositing User: Symplectic Admin
Date Deposited: 05 Apr 2016 10:38
Last Modified: 24 Jun 2026 12:09
DOI: 10.1103/PhysRevD.91.112010
Related Websites:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3000008
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