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PhysRevLett.118.151802.pdf (240.74 kB)

Measurement of the neutrino mixing angle ?23 in NOvA

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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 Zamorano
This 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 Letters

ISSN

0031-9007

Publisher

American Physical Society

Issue

15

Volume

118

Page range

1-7

Article number

a151802

Department 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

2017-06-22

First Open Access (FOA) Date

2017-06-22

First Compliant Deposit (FCD) Date

2017-06-22

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