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First measurement of muon-neutrino disappearance in NOvA

P. Adamson et al. (NOvA Collaboration)
Phys. Rev. D 93, 051104(R) – Published 25 March 2016

Abstract

This paper reports the first measurement using the NOvA detectors of νμ disappearance in a νμ beam. The analysis uses a 14 kton-equivalent exposure of 2.74×1020 protons-on-target from the Fermilab NuMI beam. Assuming the normal neutrino mass hierarchy, we measure Δm322=(2.520.18+0.20)×103eV2 and sin2θ23 in the range 0.38–0.65, both at the 68% confidence level, with two statistically degenerate best-fit points at sin2θ23=0.43 and 0.60. Results for the inverted mass hierarchy are also presented.

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  • Received 19 January 2016

DOI:https://doi.org/10.1103/PhysRevD.93.051104

© 2016 American Physical Society

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Vol. 93, Iss. 5 — 1 March 2016

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