M A, Acero and P, Adamson and Giri, Anjan Kumar and et al, .
(2019)
New constraints on oscillation parameters from v(e) appearance and v(mu) disappearance in the NOvA experiment.
Physical Review D, 98 (3).
ISSN 24700010
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Abstract
We present updated results from the NOvA experiment for v(mu) > v(mu) and v(mu) > v(e) oscillations from an exposure of 8.85 x 10(20) protons on target, which represents an increase of 46% compared to our previous publication. The results utilize significant improvements in both the simulations and analysis of the data. A joint fit to the data for v(mu) disappearance and v(e) appearance gives the bestfit point as normal mass hierarchy, Delta m(32)(2) = 2.44 x 10(3) eV(2)/c(4), sin(2) theta(23) = 0.56, and delta(CP) = 1.21 pi. The 68.3% confidence intervals in the normal mass hierarchy are Delta m(32)(2) is an element of[2.37, 2.52] x 10(3) eV(2)/c(4) , sin(2) theta(23) is an element of [0.43; 0.51] boolean OR [0.52; 0.60], and delta(CP) is an element of [0, 0.21 pi] boolean OR [0.91 pi, 2 pi]. The inverted mass hierarchy is disfavored at the 95% confidence level for all choices of the other oscillation parameters.
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