Publication at Faculty of Mathematics and Physics |
2019
Abstract
NOvA is a two-detector long-baseline neutrino oscillation experiment using Fermilab's 700 kW NuMI muon neutrino beam. With a total exposure of 8.85 x 10(20) + 12.33 x 10(20) protons on target delivered to NuMI in the neutrino + antineutrino beam mode (78% more antineutrino data than in 2018), the experiment has made a 4.4 sigma-significant observation of the to (nu) over bar (e) appearance in a (nu) over bar (mu) beam, measured oscillation parameters vertical bar Delta m(32)(2)vertical bar sin(2) theta(23), and excluded most values near delta(CP) = pi/2 for the inverted neutrino mass hierarchy by more than 3 sigma.