Year: 2025
Type: article
Abstract: We consider models with broken μ-τ permutation symmetry through higher dimensional operators renor-malizing the lepton kinetic terms in the action. We study the consequences on the structure of the neutrinomass matrix and find in particular that the allowed region for the lightest mass in the normal hierar-chy plotted as a function of the atmospheric mixing element |Vμ3| is very restricted with the atmosphericmixing angle θ23 to lie in the second octant. On the other hand, the corresponding allowed region in theinverted hierarchy regime is less restrictive.
Authors: Nidal CHAMOUN, Cherif HAMZAOUI, Manuel TOHARIA
Language: English
Topic: Neutrino Physics Research
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W4410714654