Low exposure long-baseline neutrino oscillation sensitivity of the DUNE experiment

0563828 - FZÚ 2023 RIV US eng J - Journal Article
Abed Abud, A. - Abi, B. - Acciarri, R. - Filip, Peter - Kvasnička, Jiří - Lokajíček, Miloš - Zálešák, Jaroslav - Zuklín, Josef … Total 1156 authors
Low exposure long-baseline neutrino oscillation sensitivity of the DUNE experiment.
Physical Review D. Roč. 105, č. 7 (2022), č. článku 072006. ISSN 2470-0010. E-ISSN 2470-0029
Research Infrastructure: Fermilab-CZ II - 90113
Institutional support: RVO:68378271
Keywords : DUNE * asymmetry: CP * sensitivity * lifetime
OECD category: Particles and field physics
Impact factor: 5, year: 2022
Method of publishing: Open access

The Deep Underground Neutrino Experiment (DUNE) will produce world-leading neutrino oscillation measurements over the lifetime of the experiment. In this work, we explore DUNE’s sensitivity to observe charge-parity violation (CPV) in the neutrino sector, and to resolve the mass ordering, for exposures of up to 100 kiloton-megawatt-calendar years (kt-MW-CY), where calendar years include an assumption of 57% accelerator uptime based on past accelerator performance at Fermilab. The analysis includes detailed uncertainties on the flux prediction, the neutrino interaction model, and detector effects. We demonstrate that DUNE will be able to unambiguously resolve the neutrino mass ordering at a 4σ (5σ) level with a 66 (100) kt-MW-CY far detector exposure, and has the ability to make strong statements at significantly shorter exposures depending on the true value of other oscillation parameters, with a median sensitivity of 3σ for almost all true δCP values after only 24 kt-MW-CY.
Permanent Link: https://hdl.handle.net/11104/0335623