First measurement of muon-neutrino disappearance in NOvA

Journal Article · Tue Mar 01 00:00:00 EST 2016 · Physical Review. D.

DOI:https://doi.org/10.1103/PhysRevD.93.051104· OSTI ID:1244488

Adamson, P. ^[1]

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1. et al.

This paper reports the first measurement using the NOvA detectors of $$\nu_\mu$$ disappearance in a $$\nu_\mu$$ beam. The analysis uses a 14 kton-equivalent exposure of $$2.74 \times 10^{20}$$ protons-on-target from the Fermilab NuMI beam. Assuming the normal neutrino mass hierarchy, we measure $$\Delta m^{2}_{32}=(2.52^{+0.20}_{-0.18})\times 10^{-3}$$ eV$$^{2}$$ and $$\sin^2\theta_{23}$$ in the range 0.38-0.65, both at the 68% confidence level, with two statistically-degenerate best fit points at $$\sin^2\theta_{23} = $$ 0.43 and 0.60. Results for the inverted mass hierarchy are also presented.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• Contributing Organization: NOvA
• Grant/Contract Number: AC02-07CH11359
• OSTI ID: 1244488
• Alternate ID(s): OSTI ID: 1244140
• Report Number(s): FERMILAB-PUB-16-007-ND; arXiv:1601.05037; PRVDAQ; oai:inspirehep.net:1415953
• Journal Information: Physical Review. D., Vol. 93, Issue 5; ISSN 2470-0010
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: English

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