First measurement of electron neutrino appearance in NOvA
Nenhuma Miniatura disponível
Data
2016
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
We report results from the first search for νμ → νe transitions by the NOvA experiment. In an exposure
equivalent to 2.74 × 1020 protons on target in the upgraded NuMI beam at Fermilab, we observe 6 events in
the Far Detector, compared to a background expectation of 0.99 0.11ðsystÞ events based on the Near
Detector measurement. A secondary analysis observes 11 events with a background of 1.07 0.14ðsystÞ.
The 3.3σ excess of events observed in the primary analysis disfavors 0.1π < δCP < 0.5π in the inverted
mass hierarchy at the 90% C.L.
Descrição
Palavras-chave
Citação
ADAMSON, P. et al. First measurement of electron neutrino appearance in NOvA. Physical Review Letters, Washington, v. 116, e151806, 2016. DOI: 10.1103/PhysRevLett.116.151806. Disponível em: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.116.151806. Acesso em: 16 maio 2023.