Title
Search for active-sterile neutrino mixing using neutral-current interactions in NOvA
Date Issued
30 October 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.
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.
Groh M.
Group R.
Grover D.
Guo B.
Habig A.
Hartnell J.
Hatcher R.
Hatzikoutelis A.
Heller K.
Himmel A.
Holin A.
Howard B.
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.
Lackey T.
Lang K.
Lee W.M.
Lin S.
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.
Fermi National Accelerator Laboratory
Publisher(s)
American Physical Society
Abstract
We report results from the first search for sterile neutrinos mixing with active neutrinos through a reduction in the rate of neutral-current interactions over a baseline of 810 km between the NOvA detectors. Analyzing a 14-kton detector equivalent exposure of 6.05×1020 protons-on-target in the NuMI beam at Fermilab, we observe 95 neutral-current candidates at the Far Detector compared with 83.5±9.7(stat)±9.4(syst) events predicted assuming mixing only occurs between active neutrino species. No evidence for νμ→νs transitions is found. Interpreting these results within a 3+1 model, we place constraints on the mixing angles θ24<20.8° and θ34<31.2° at the 90% C.L. for 0.05 eV2≤Δm412≤0.5 eV2, the range of mass splittings that produce no significant oscillations over the Near Detector baseline.
Volume
96
Issue
7
Language
English
OCDE Knowledge area
Física y Astronomía
Scopus EID
2-s2.0-85033584507
Source
Physical Review D
ISSN of the container
24700010
Sponsor(s)
The NOvA collaboration uses the resources of the Fermi National Accelerator Laboratory (Fermilab), a U.S. Department of Energy, Office of Science, HEP User Facility. Fermilab is managed by Fermi Research Alliance, LLC (FRA), acting under Contract No. DE-AC02-07CH11359. This research 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 staff at Fermilab and the NOvA Far Detector Laboratory.
Sources of information:
Directorio de Producción Científica
Scopus