Updated T2K measurements of muon neutrino and antineutrino disappearance using 1.5 × 1021 protons on target

T2K Collaboration

Research output: Contribution to journalArticlepeer-review

Abstract

We report measurements by the T2K experiment of the parameters θ23 and ∆m232 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+00..0807 and ∆m232 = 2.53+00..1513 × 103eV2/c4 for neutrinos, and sin2(θ23) = 0.42+00..2507 and ∆m232 = 2.55+00..3327 × 103eV2/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.

Original languageEnglish
JournalUnknown Journal
Publication statusPublished - Apr 21 2017

ASJC Scopus subject areas

  • General

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