First measurement of neutrino oscillation parameters using neutrinos and antineutrinos by NOvA

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dc.creatorAcero Ortega, Mario A.
dc.creatorAdamson, P.
dc.creatorSoplin, Leonidas Aliaga
dc.creatorAlion, T.
dc.creatorAllakhverdian, Vladimir
dc.creatorAltakarli, Sef
dc.creatorAnfimov, Nikolay
dc.creatorAntoshkin, A.
dc.creatorAurisano, Adam
dc.creatorBack, A.
dc.creatorGomes, Ricardo Avelino
dc.date.accessioned2023-05-22T15:53:23Z
dc.date.available2023-05-22T15:53:23Z
dc.date.issued2019
dc.description.abstractThe NOvA experiment has seen a 4.4σ signal of ¯νe appearance in a 2 GeV ¯νμ beam at a distance of 810 km. Using 12.33 × 1020 protons on target delivered to the Fermilab NuMI neutrino beamline, the experiment recorded 27 ¯νμ → ¯νe candidates with a background of 10.3 and 102 ¯νμ → ¯νμ candidates. This new antineutrino data are combined with neutrino data to measure the parameters jΔm2 32j ¼ 2.48þ0.11 −0.06 × 10−3 eV2=c4 and sin2 θ23 in the ranges from (0.53–0.60) and (0.45–0.48) in the normal neutrino mass hierarchy. The data exclude most values near δCP ¼ π=2 for the inverted mass hierarchy by more than 3σ and favor the normal neutrino mass hierarchy by 1.9σ and θ23 values in the upper octant by 1.6σ.pt_BR
dc.identifier.citationACERO, M. A. et al. First measurement of neutrino oscillation parameters using neutrinos and antineutrinos by NOvA. Physical Review Letters, Washington, v. 123, e151803, 2019. DOI: 10.1103/PhysRevLett.123.151803. Disponível em: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.123.151803. Acesso em: 16 maio 2023.pt_BR
dc.identifier.doi10.1103/PhysRevLett.123.151803
dc.identifier.issn0031-9007
dc.identifier.issne- 1079-7114
dc.identifier.urihttp://repositorio.bc.ufg.br/handle/ri/22604
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.titleFirst measurement of neutrino oscillation parameters using neutrinos and antineutrinos by NOvApt_BR
dc.typeArtigopt_BR

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