Measurement of the Neutrino Mixing Angle θ23 in NOvA

dc.creatorAdamson, P.
dc.creatorSoplin, Leonidas Aliaga
dc.creatorAmbrose, D.
dc.creatorAnfimov, Nikolay
dc.creatorAntoshkin, A.
dc.creatorArrieta Diaz, Enrique
dc.creatorAugsten, Kamil
dc.creatorAurisano, Adam
dc.creatorBackhouse, C.
dc.creatorBaird, M.
dc.creatorGomes, Ricardo Avelino
dc.date.accessioned2023-05-23T11:34:30Z
dc.date.available2023-05-23T11:34:30Z
dc.date.issued2017
dc.description.abstractThis Letter reports new results on muon neutrino disappearance from NOvA, using a 14 kton detector equivalent exposure of 6.05 × 1020 protons on target from the NuMI beam at the Fermi National Accelerator Laboratory. The measurement probes the muon-tau symmetry hypothesis that requires maximal θ23 mixing (θ23 ¼ π=4). Assuming the normal mass hierarchy, we find Δm2 32 ¼ ð2.67 0.11Þ × 10−3 eV2 and sin2 θ23 at the two statistically degenerate values 0.404þ0.030 −0.022 and 0.624þ0.022 −0.030 , both at the 68% confidence level. Our data disfavor the maximal mixing scenario with 2.6σ significance.pt_BR
dc.identifier.citationADAMSON, P. et al. Measurement of the Neutrino Mixing Angle θ23 in NOvA. Physical Review Letters, Washington, v. 118, e151802, 2017. DOI: 10.1103/PhysRevLett.118.151802. Disponível em: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.118.151802. Acesso em: 16 maio 2023.pt_BR
dc.identifier.doi10.1103/PhysRevLett.118.151802
dc.identifier.issn 0031-9007
dc.identifier.issne-  1079-7114
dc.identifier.urihttp://repositorio.bc.ufg.br/handle/ri/22606
dc.language.isoengpt_BR
dc.publisher.countryEstados unidospt_BR
dc.publisher.departmentInstituto de Física - IF (RGM)pt_BR
dc.rightsAcesso Abertopt_BR
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.titleMeasurement of the Neutrino Mixing Angle θ23 in NOvApt_BR
dc.typeArtigopt_BR

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