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  • PhysRevLett.116.151806

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First measurement of electron neutrino appearance in NOvA

Research output: Contribution to Journal/MagazineJournal articlepeer-review

  • NOvA Collaboration
Article number151806
<mark>Journal publication date</mark>13/04/2016
<mark>Journal</mark>Physical review letters
Issue number15
Number of pages7
Publication StatusPublished
<mark>Original language</mark>English


We report results from the first search for $\nu_\mu\to\nu_e$ transitions by the NOvA experiment. In an exposure equivalent to $2.74\times10^{20}$ protons-on-target in the upgraded NuMI beam at Fermilab, we observe 6 events in the Far Detector, compared to a background expectation of $0.99\pm0.11$ (syst.) events based on the Near Detector measurement. A secondary analysis observes 11 events with a background of $1.07\pm0.14$ (syst.). The $3.3\sigma$ excess of events observed in the primary analysis disfavors $0.1\pi

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© 2016 American Physical Society