PhysRevLett.118.151802.pdf (240.74 kB)
Measurement of the neutrino mixing angle ?23 in NOvA
journal contribution
posted on 2023-06-09, 06:52 authored by M Baird, T Blackburn, J P Davies, Jeff HartnellJeff Hartnell, D P Mendez Mendez, M Tamsett, L Vinton, B ZamoranoThis Letter reports new results on muon neutrino disappearance from NOvA, using a 14 kton detector equivalent exposure of 6.05×1020 protons on target from the NuMI beam at the Fermi National Accelerator Laboratory. The measurement probes the muon-tau symmetry hypothesis that requires maximal ?23 mixing (?23=p/4). Assuming the normal mass hierarchy, we find ?m232=(2.67±0.11)×10-3??eV2 and sin2?23 at the two statistically degenerate values 0.404 +0.030-0.022 and 0.624 +0.022-0.030, both at the 68% confidence level. Our data disfavor the maximal mixing scenario with 2.6s significance.
Funding
Probing Fundamental Physics with Antineutrinos at the NOvA Experiment; G0949; EUROPEAN UNION; 307395
History
Publication status
- Published
File Version
- Published version
Journal
Physical Review LettersISSN
0031-9007Publisher
American Physical SocietyExternal DOI
Issue
15Volume
118Page range
1-7Article number
a151802Department affiliated with
- Physics and Astronomy Publications
Research groups affiliated with
- Experimental Particle Physics Research Group Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2017-06-22First Open Access (FOA) Date
2017-06-22First Compliant Deposit (FCD) Date
2017-06-22Usage metrics
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