Title
Measurement of the Neutrino Mixing Angle θ23 in NOvA
Date Issued
10 April 2017
Access level
open access
Resource Type
journal article
Author(s)
Adamson P.
Ambrose D.
Anfimov N.
Antoshkin A.
Arrieta-Diaz E.
Augsten K.
Aurisano A.
Backhouse C.
Baird M.
Bambah B.A.
Bays K.
Behera B.
Bending S.
Bernstein R.
Bhatnagar V.
Bhuyan B.
Bian J.
Blackburn T.
Bolshakova A.
Bromberg C.
Brown J.
Brunetti G.
Buchanan N.
Butkevich A.
Bychkov V.
Campbell M.
Catano-Mur E.
Childress S.
Choudhary B.C.
Chowdhury B.
Coan T.E.
Coelho J.A.B.
Colo M.
Cooper J.
Corwin L.
Cremonesi L.
Cronin-Hennessy D.
Davies G.S.
Davies J.P.
Derwent P.F.
Desai S.
Dharmapalan R.
Ding P.
Djurcic Z.
Dukes E.C.
Duyang H.
Edayath S.
Ehrlich R.
Feldman G.J.
Frank M.J.
Gabrielyan M.
Gallagher H.R.
Germani S.
Ghosh T.
Giri A.
Gomes R.A.
Goodman M.C.
Grichine V.
Group R.
Grover D.
Guo B.
Habig A.
Hartnell J.
Hatcher R.
Hatzikoutelis A.
Heller K.
Himmel A.
Holin A.
Hylen J.
Jediny F.
Judah M.
Kafka G.K.
Kalra D.
Kasahara S.M.S.
Kasetti S.
Keloth R.
Kolupaeva L.
Kotelnikov S.
Kourbanis I.
Kreymer A.
Kumar A.
Kurbanov S.
Lang K.
Lee W.M.
Lin S.
Liu J.
Lokajicek M.
Lozier J.
Luchuk S.
Maan K.
Magill S.
Mann W.A.
Marshak M.L.
Matera K.
Matveev V.
Méndez D.P.
Messier M.D.
Meyer H.
Miao T.
Fermi National Accelerator Laboratory
Publisher(s)
American Physical Society
Abstract
This Letter reports new results on muon neutrino disappearance from NOvA, using a 14 kton detector equivalent exposure of 6.05×1020 protons on target from the NuMI beam at the Fermi National Accelerator Laboratory. The measurement probes the muon-tau symmetry hypothesis that requires maximal θ23 mixing (θ23=π/4). Assuming the normal mass hierarchy, we find Δm322=(2.67±0.11)×10-3 eV2 and sin2θ23 at the two statistically degenerate values 0.404-0.022+0.030 and 0.624-0.030+0.022, both at the 68% confidence level. Our data disfavor the maximal mixing scenario with 2.6σ significance.
Volume
118
Issue
15
Language
English
OCDE Knowledge area
Astronomía
Scopus EID
2-s2.0-85017471559
PubMed ID
Source
Physical Review Letters
ISSN of the container
00319007
Sponsor(s)
This work was supported by the U.S. Department of Energy; the U.S. National Science Foundation; the Department of Science and Technology, India; the European Research Council; the MSMT CR, GA UK, 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, Argonne National Laboratory, and Fermilab. Fermilab is operated by Fermi Research Alliance, LLC under Contract No.De-AC02-07CH11359 with the U.S. DOE.
Sources of information:
Directorio de Producción Científica
Scopus