Updated T2K measurements of muon neutrino and antineutrino disappearance using 1.5 x 10(21) protons on target



Abe, K, Amey, J, Andreopoulos, C ORCID: 0000-0003-2020-8215, Antonova, M, Aoki, S, Ariga, A, Ashida, Y, Autiero, D, Ban, S, Barbi, M
et al (show 315 more authors) (2017) Updated T2K measurements of muon neutrino and antineutrino disappearance using 1.5 x 10(21) protons on target PHYSICAL REVIEW D, 96 (1). 011102-. ISSN 2470-0010, 2470-0029

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Abstract

We report measurements by the T2K experiment of the parameters θ23 and Δm322 governing the disappearance of muon neutrinos and antineutrinos in the three-flavor neutrino oscillation model. Utilizing the ability of the experiment to run with either a mainly neutrino or a mainly antineutrino beam, the parameters are measured separately for neutrinos and antineutrinos. Using 7.482×1020 POT in neutrino running mode and 7.471×1020 POT in antineutrino mode, T2K obtained sin2(θ23)=0.51-0.07+0.08 and Δm322=2.53-0.13+0.15×10-3 eV2/c4 for neutrinos, and sin2(θ-23)=0.42-0.07+0.25 and Δm-232=2.55-0.27+0.33×10-3 eV2/c4 for antineutrinos (assuming normal mass ordering). No significant differences between the values of the parameters describing the disappearance of muon neutrinos and antineutrinos were observed.

Item Type: Article
Additional Information: 8 pages, 2 figures
Uncontrolled Keywords: neutrino oscillations, neutrino detectors
Depositing User: Symplectic Admin
Date Deposited: 09 May 2017 09:46
Last Modified: 16 Jun 2026 15:14
DOI: 10.1103/PhysRevD.96.011102
Related Websites:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3007260
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