@Article{T2KCollaborationAbe_etal2021,
author="T2K Collaboration (Abe, K. et al
and Antonova, M.
and Cervera-Villanueva, A.",
title="T2K measurements of muon neutrino and antineutrino disappearance using 3.13 x 10(21) protons on target",
journal="Physical Review D",
year="2021",
publisher="Amer Physical Soc",
volume="103",
number="1",
pages="L011101 - 9pp",
abstract="We report measurements by the T2K experiment of the parameters theta(23) and Delta m(32)(2), which govern the disappearance of muon neutrinos and antineutrinos in the three-flavor PMNS neutrino oscillation model at T2K{\textquoteright}s neutrino energy and propagation distance. Utilizing the ability of the experiment to run with either a mainly neutrino or a mainly antineutrino beam, muon-like events from each beam mode are used to measure these parameters separately for neutrino and antineutrino oscillations. Data taken from 1.49 x 10(21) protons on target (POT) in neutrino mode and 1.64 x 10(21) POT in antineutrino mode are used. The best-fit values obtained by T2K were sin(2)(theta(23)) = 0.51(-0.07)(+0.06) (0.43(-0.05)(+0.21)) and Delta m(32)(2) = 2.47(-0.09)(+0.08) (2.50(-0.13)(+0.18)) x 10(-3) eV(2)/c(4) for neutrinos (antineutrinos). No significant differences between the values of the parameters describing the disappearance of muon neutrinos and antineutrinos were observed. An analysis using an effective two-flavor neutrino oscillation model where the sine of the mixing angle is allowed to take nonphysical values larger than 1 is also performed to check the consistency of our data with the three-flavor model. Our data were found to be consistent with a physical value for the mixing angle.",
optnote="WOS:000612138600005",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4734), last updated on Mon, 15 Mar 2021 08:40:58 +0000",
issn="2470-0010",
doi="10.1103/PhysRevD.103.L011101",
opturl="https://arxiv.org/abs/2008.07921",
opturl="https://doi.org/10.1103/PhysRevD.103.L011101",
language="English"
}