Research demonstrates neutrino oscillations and PMNS matrix emergence in gauge-Higgs unification, suggesting new pathways for mass generation.
In the SO(5) × U(1) × SU(3) gauge-Higgs unification in the Randall-Sundrum (RS) warped space neutrino oscillations and the Pontecorvo-Maki-Nakagawa-Sakata (PMNS) matrix in the W couplings originate from Majorana mass terms on the ultraviolet brane in the RS space. Tiny neutrino masses are generated by an inverse seesaw mechanism. The PMNS matrix in the normal ordering with δCP=π naturally arises consistently with the NuFit-6.0 analysis of neutrino oscillation data.
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Yutaka Hosotani (2025) studied this question.
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