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

0563828 - FZÚ 2023 RIV US eng J - Článek v odborném periodiku
Abed Abud, A. - Abi, B. - Acciarri, R. - Filip, Peter - Kvasnička, Jiří - Lokajíček, Miloš - Zálešák, Jaroslav - Zuklín, Josef … celkem 1156 autorů
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
Výzkumná infrastruktura: Fermilab-CZ II - 90113
Institucionální podpora: RVO:68378271
Klíčová slova: DUNE * asymmetry: CP * sensitivity * lifetime
Obor OECD: Particles and field physics
Impakt faktor: 5, rok: 2022
Způsob publikování: 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.
Trvalý link: https://hdl.handle.net/11104/0335623