Are neutrino oscillation mixings linked to the smallness of solar neutrino scale? (9 Pages)

• E. Becerra-García ^[1] ; A. Pérez-Lorenzana ^[1]
  1. [1] Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México
• Localización: Revista Mexicana de Física, ISSN-e 0035-001X, Vol. 70, Nº. 5, 2024
• Idioma: inglés
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• Resumen

  • Observed reactor and atmospheric neutrino oscillation mixing values appear to be related to the neutrino scale ratio √(∆m^(2)_(s)ol/∆^(2)_(ATM)) in a way that suggest that the neutrino mass matrix can be expanded as a power series by using this ratio as the smallness parameter. This approach provides a simple and natural way to expose the inner hierarchies among neutrino mass terms, which amounts to also explain the solar oscillation mixing as well as solar oscillation scale. We explore a class of mass matrix textures that realize this scenario, for both normal and inverted neutrino mass hierarchies, as well as CP violation and their stability under renormalization scaling.