@Article{T2KCollaborationAbe_etal2014,
author="T2K Collaboration (Abe, K. et al
and Cervera-Villanueva, A.
and Escudero, L.
and Gomez-Cadenas, J. J.
and Izmaylov, A.
and Monfregola, L.
and Sorel, M.
and Stamoulis, P.",
title="Measurement of the neutrino-oxygen neutral-current interaction cross section by observing nuclear deexcitation gamma rays",
journal="Physical Review D",
year="2014",
publisher="Amer Physical Soc",
volume="90",
number="7",
pages="072012--11pp",
abstract="We report the first measurement of the neutrino-oxygen neutral-current quasielastic (NCQE) cross section gamma It is obtained by observing nuclear deexcitation. rays which follow neutrino-oxygen interactions at the Super-Kamiokande water Cherenkov detector. We use T2K data corresponding to 3.01 x 10(20) protons on target. By selecting only events during the T2K beam window and with well-reconstructed vertices in the fiducial volume, the large background rate from natural radioactivity is dramatically reduced. We observe 43 events in the 4-30 MeV reconstructed energy window, compared with an expectation of 51.0, which includes an estimated 16.2 background events. The background is primarily nonquasielastic neutral-current interactions and has only 1.2 events from natural radioactivity. The flux-averaged NCQE cross section we measure is 1.55 x 10(-38) cm(2) with a 68{\%} confidence interval of (1.22, 2.20) x 10(-38) cm(2) at a median neutrino energy of 630 MeV, compared with the theoretical prediction of 2.01 x 10(-38) cm(2).",
optnote="WOS:000344033100001",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1993), last updated on Wed, 11 Feb 2015 11:59:24 +0000",
issn="1550-7998",
doi="10.1103/PhysRevD.90.072012",
opturl="http://arxiv.org/abs/1403.3140",
opturl="https://doi.org/10.1103/PhysRevD.90.072012",
archivePrefix="arXiv",
eprint="1403.3140",
language="English"
}