First measurement of neutrino oscillation parameters using neutrinos and antineutrinos by NOvA

Acero, M. A.; Adamson, P.; Aliaga, L.; Filip, Peter; Hakl, František; Lokajíček, Miloš; Zálešák, Jaroslav

doi:https://dx.doi.org/10.1103/PhysRevLett.123.151803

Number of the records: 1

First measurement of neutrino oscillation parameters using neutrinos and antineutrinos by NOvA

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SYSNO ASEP	0511736
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	First measurement of neutrino oscillation parameters using neutrinos and antineutrinos by NOvA
Author(s)	Acero, M. A. (CO) Adamson, P. (US) Aliaga, L. (US) Filip, Peter (FZU-D)_ORCID Hakl, František (UIVT-O)_{SAI, RID, ORCID} Lokajíček, Miloš (FZU-D)_{RID, ORCID} Zálešák, Jaroslav (FZU-D)_{RID, ORCID}
Number of authors	200
Article number	151803
Source Title	Physical Review Letters. - : American Physical Society - ISSN 0031-9007 Roč. 123, č. 15 (2019), s. 1-8
Number of pages	8 s.
Language	eng - English
Country	US - United States
Keywords	elementary particles and fields ; NOvA ; background ; experimental results
Subject RIV	BF - Elementary Particles and High Energy Physics
OECD category	Particles and field physics
Subject RIV - cooperation	Institute of Computer Science - Elementary Particles and High Energy Physics
R&D Projects	LM2015068 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Method of publishing	Open access
Institutional support	FZU-D - RVO:68378271 ; UIVT-O - RVO:67985807
UT WOS	000489831000003
EID SCOPUS	85073474513
DOI	10.1103/PhysRevLett.123.151803
Annotation	The NOvA experiment has seen a 4.4σ signal of ν¯e appearance in a 2 GeV ν¯μ beam at a distance of 810 km. Using 12.33×1020 protons on target delivered to the Fermilab NuMI neutrino beamline, the experiment recorded 27 ν¯μ→ν¯e candidates with a background of 10.3 and 102 ν¯μ→ν¯μ candidates. This new antineutrino data are combined with neutrino data to measure the parameters \|Δm322\|=2.48-0.06+0.11×10-3 eV2/c4 and sin2θ23 in the ranges from (0.53–0.60) and (0.45–0.48) in the normal neutrino mass hierarchy. The data exclude most values near δCP=π/2 for the inverted mass hierarchy by more than 3σ and favor the normal neutrino mass hierarchy by 1.9σ and θ23 values in the upper octant by 1.6σ.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2020
Electronic address	http://hdl.handle.net/11104/0301970

Number of the records: 1