Publication: First Measurement of Electron Neutrino Appearance in NOvA
Loading...
Open/View Files
Date
2016
Published Version
Journal Title
Journal ISSN
Volume Title
Publisher
American Physical Society (APS)
The Harvard community has made this article openly available. Please share how this access benefits you.
Citation
Adamson, P., C. Ader, M. Andrews, N. Anfimov, I. Anghel, K. Arms, E. Arrieta-Diaz, et al. 2016. “First Measurement of Electron Neutrino Appearance in NOvA.” Physical Review Letters 116 (15) (April 13). doi:10.1103/physrevlett.116.151806. http://dx.doi.org/10.1103/PhysRevLett.116.151806.
Abstract
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±0.11(syst) events based on the Near Detector measurement. A secondary analysis observes 11 events with a background of 1.07±0.14(syst). 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.
Description
Other Available Sources
Research Data
Keywords
neutrino: oscillation, neutrino/mu: beam, neutrino/e: particle identification, neutrino: mixing angle, neutrino: mass difference, mass: hierarchy, background, NOvA, near detector, far detector, experimental results
Terms of Use
This article is made available under the terms and conditions applicable to Open Access Policy Articles (OAP), as set forth at Terms of Service