articleJournal of High Energy PhysicsDec 30, 2024DIAMOND OA

NuFit-6.0: updated global analysis of three-flavor neutrino oscillations

IEIvan EstebanMCM. C. González-GarcíaMMMichele MaltoniIMIvan Martínez-SolerJPJoão Paulo Pinheiro

University of the Basque Country · Institució Catalana de Recerca i Estudis Avançats · +7 more institutions

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Abstract

A bstract We present an updated global analysis of neutrino oscillation data as of September 2024. The parameters θ 12 , θ 13 , $$ \Delta {m}_{21}^2 $$ ∆ m 21 2 , and $$ \mid \Delta {m}_{3\ell}^2\mid $$ ∣ ∆ m 3 ℓ 2 ∣ ( ℓ = 1 , 2) are well-determined with relative precision at 3 σ of about 13%, 8%, 15%, and 6%, respectively. The third mixing angle θ 23 still suffers from the octant ambiguity, with no clear indication of whether it is larger or smaller than 45 ° . The determination of the leptonic CP phase δ CP depends on the neutrino mass ordering: for normal ordering the global fit is consistent with CP conservation within 1 σ , whereas for inverted ordering CP-violating values of δ CP around 270 °…

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Topics & keywords

Topics
Keywords
  • Physics
  • Particle physics
  • Neutrino oscillation
  • Flavor
  • Neutrino
  • Physics beyond the Standard Model
  • Nuclear physics
  • Theoretical physics
UN Sustainable Development Goals
  • Life in Land
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