000169988 001__ 169988
000169988 005__ 20260316092629.0
000169988 0247_ $$2doi$$a10.1140/epjc/s10052-025-14938-9
000169988 0248_ $$2sideral$$a148627
000169988 037__ $$aART-2026-148627
000169988 041__ $$aeng
000169988 100__ $$aAbe, K.
000169988 245__ $$aSensitivity of the Hyper-Kamiokande experiment to neutrino oscillation parameters using accelerator neutrinos
000169988 260__ $$c2026
000169988 5060_ $$aAccess copy available to the general public$$fUnrestricted
000169988 5203_ $$aThis paper presents the expected sensitivity to the neutrino oscillation parameters of the Hyper-Kamiokande long-baseline program. The Hyper-Kamiokande experiment, currently under construction in Japan, will measure the oscillations of accelerator-produced neutrinos with thousands of selected events per sample: this corresponds to an increase of statistics of a factor 25–100 with respect to recent results from the currently-running long-baseline neutrino oscillation experiment in Japan, T2K. In the most favorable scenario we will achieve the discovery of Charge-Parity (CP) violation in neutrino oscillation at 5σ C.L. in less than 3 years. With 10 years of data-taking, and assuming a neutrino : antineutrino beam running ratio of 1:3, a CP violation discovery at 5σ C.L. is possible for more than 60% of the actual values of the CP-violating phase, δCP. Moreover, we will measure δCP with a precision ranging from 20∘, in the case of maximal CP violation, to 6∘, in the case of CP conservation. We aim to achieve a 0.5% resolution on the Δm322 parameter, and a resolution between 3% and 0.5% on the sin2θ23 parameter, depending on its true value. These results are obtained by extending the analysis methods of T2K with dedicated tuning to take into account the Hyper-Kamiokande design: the larger far detector, the more powerful beam, the upgraded near detector ND280, and the planned additional Intermediate Water Cherenkov Detector.
000169988 536__ $$9info:eu-repo/grantAgreement/ES/MCIU/PID2022-139198NB-I00$$9info:eu-repo/grantAgreement/ES/MICINN/PID2021-124050NB-C31$$9info:eu-repo/grantAgreement/ES/MICINN/PID2022-136297NB-I00$$9info:eu-repo/grantAgreement/ES/NextGenerationEU/PRTR
000169988 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttps://creativecommons.org/licenses/by/4.0/deed.es
000169988 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000169988 700__ $$aAfif, M. T.
000169988 700__ $$aAnthony, L.
000169988 700__ $$aAraya, A.
000169988 700__ $$aArguello Quiroga, A.
000169988 700__ $$aArimoto, S.
000169988 700__ $$aBatkiewicz-Kwasniak, M.
000169988 700__ $$aBeauchêne, A.
000169988 700__ $$aCasado, M. P.
000169988 700__ $$aCatanesi, M. G.
000169988 700__ $$aCavanagh, C.
000169988 700__ $$0(orcid)0000-0002-6948-5101$$aCebrián, S.$$uUniversidad de Zaragoza
000169988 7102_ $$12004$$2390$$aUniversidad de Zaragoza$$bDpto. Física Teórica$$cÁrea Física Atóm.Molec.y Nucl.
000169988 773__ $$g86, 2 (2026), [18 pp.]$$pEur. phys. j., C$$tThe European Physical Journal C$$x1434-6044
000169988 8564_ $$s2130309$$uhttps://zaguan.unizar.es/record/169988/files/texto_completo.pdf$$yVersión publicada
000169988 8564_ $$s3397834$$uhttps://zaguan.unizar.es/record/169988/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000169988 909CO $$ooai:zaguan.unizar.es:169988$$particulos$$pdriver
000169988 951__ $$a2026-03-16-08:16:21
000169988 980__ $$aARTICLE