Improved measurement of neutrino oscillation parameters by the NOvA experiment

Página do item simplificado
dc.creatorAcero Ortega, Mario A.
dc.creatorSoplin‬, ‪Leonidas Aliaga
dc.creatorAdamson, P.
dc.creatorAnfimov, Nikolay
dc.creatorAntoshkin, A.
dc.creatorArrieta Diaz, Enrique
dc.creatorAsquith, Lily
dc.creatorAurisano, Adam
dc.creatorBack, A.
dc.creatorBackhouse, C.
dc.creatorGomes, Ricardo Avelino
dc.date.accessioned2023-05-17T12:30:06Z
dc.date.available2023-05-17T12:30:06Z
dc.date.issued2022
dc.description.abstractWe present new νμ → νe, νμ → νμ, ¯νμ → ¯νe, and ¯νμ → ¯νμ oscillation measurements by the NOvA experiment, with a 50% increase in neutrino-mode beam exposure over the previously reported results. The additional data, combined with previously published neutrino and antineutrino data, are all analyzed using improved techniques and simulations. A joint fit to the νe, νμ, ¯νe, and ¯νμ candidate samples within the 3-flavor neutrino oscillation framework continues to yield a best-fit point in the normal mass ordering and the upper octant of the θ23 mixing angle, with Δm2 32 ¼ ð2.41 0.07Þ × 10−3 eV2 and sin2 θ23 ¼ 0.57þ0.03 −0.04 . The data disfavor combinations of oscillation parameters that give rise to a large asymmetry in the rates of νe and ¯νe appearance. This includes values of the charge parity symmetry (CP) violating phase in the vicinity of δCP ¼ π=2 which are excluded by > 3σ for the inverted mass ordering, and values around δCP ¼ 3π=2 in the normal ordering which are disfavored at 2σ confidence.pt_BR
dc.identifier.citationACERO, M. A. et al. Improved measurement of neutrino oscillation parameters by the NOvA experiment. Physical Review D, Washington, v. 106, n. 3, e032004, 2022. DOI: 10.1103/PhysRevD.106.032004. Disponível em: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.106.032004. Acesso em: 16 maio 2023.pt_BR
dc.identifier.doi10.1103/PhysRevD.106.032004
dc.identifier.issne- 2470-0029
dc.identifier.issn2470-0010
dc.identifier.urihttp://repositorio.bc.ufg.br/handle/ri/22546
dc.language.isoengpt_BR
dc.publisher.countryEstados unidospt_BR
dc.publisher.departmentInstituto de Física - IF (RG)pt_BR
dc.rightsAcesso Abertopt_BR
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.titleImproved measurement of neutrino oscillation parameters by the NOvA experimentpt_BR
dc.typeArtigopt_BR

Arquivos

Pacote Original
Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
Artigo - Mario A. Acero Ortega - 2022.pdf
Tamanho:
540.44 KB
Formato:
Adobe Portable Document Format
Descrição:
Baixar
Licença do Pacote
Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Baixar

Coleções

IF - Artigos publicados em periódicos