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First measurement of muon-neutrino disappearance in NOvA

Adamson, P. and Backhouse, C. and Bays, K. and Howcroft, C. and Lozier, J. and Michael, D. and Mualem, L. and Newman, H. B. and Patterson, R. B. and Pershey, D. and Trevor, J. (2016) First measurement of muon-neutrino disappearance in NOvA. Physical Review D, 93 (5). Art. No. 051104. ISSN 2470-0010. doi:10.1103/PhysRevD.93.051104.

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

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Mualem, L.0000-0003-3716-5100
Newman, H. B.0000-0003-0964-1480
Patterson, R. B.0000-0002-5787-9517
Additional Information:© 2016 American Physical Society. Received 19 January 2016; published 25 March 2016. This work was supported by the U.S. Department of Energy (DOE); the U.S. National Science Foundation; the Department of Science and Technology, India; the European Research Council; the MSMT CR, Czech Republic; the RAS, RMES, and RFBR, Russia; CNPq and FAPEG, Brazil; and the State and University of Minnesota. We are grateful for the contributions of the staffs of the University of Minnesota module assembly facility and NOvA FD Laboratory, Argonne National Laboratory, and Fermilab. Fermilab is operated by Fermi Research Alliance, LLC under Contract No. De-AC02- 07CH11359 with the U.S. DOE.
Funding AgencyGrant Number
Department of Energy (DOE)UNSPECIFIED
Department of Science and Technology (India)UNSPECIFIED
European Research Council (ERC)UNSPECIFIED
Ministry of Education, Youth and Sports (Czech Republic)UNSPECIFIED
Russian Academy of SciencesUNSPECIFIED
Ministry of Education and Science of the Russian FederationUNSPECIFIED
Russian Foundation for Basic ResearchUNSPECIFIED
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)UNSPECIFIED
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)UNSPECIFIED
State of MinnesotaUNSPECIFIED
University of MinnesotaUNSPECIFIED
Department of Energy (DOE)DE-AC02-07CH11359
Issue or Number:5
Record Number:CaltechAUTHORS:20160428-080543386
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:66521
Deposited By: Tony Diaz
Deposited On:30 Apr 2016 18:05
Last Modified:10 Nov 2021 23:59

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