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Constraints on oscillation parameters from ν.sub.e./sub. appearance and ν.sub.μ./sub. disappearance in NOvA
- 1.0484336 - FZÚ 2018 RIV US eng J - Journal Article
Adamson, P. - Aliaga, L. - Ambrose, D. - Lokajíček, Miloš - Zálešák, Jaroslav … Total 180 authors
Constraints on oscillation parameters from νe appearance and νμ disappearance in NOvA.
Physical Review Letters. Roč. 118, č. 23 (2017), s. 1-7, č. článku 231801. ISSN 0031-9007. E-ISSN 1079-7114
Institutional support: RVO:68378271
Keywords : neutrino/mu * secondary beam * hierarchy * mass * NOvA * neutrino * nuclear reactor
OECD category: Particles and field physics
Impact factor: 8.839, year: 2017
Results are reported from an improved measurement of νμ→νe transitions by the NOvA experiment. Using an exposure equivalent to 6.05×1020 protons on target, 33 νe candidates are observed with a background of 8.2±0.8 (syst.). Combined with the latest NOvA νμ disappearance data and external constraints from reactor experiments on sin22θ13, the hypothesis of inverted mass hierarchy with θ23 in the lower octant is disfavored at greater than 93% C.L. for all values of δCP.
Permanent Link: http://hdl.handle.net/11104/0279489
Number of the records: 1