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Neutrino oscillations and PMNS matrix in gauge-Higgs unification

Yutaka Hosotani*

  • *Contact author: hosotani@rcnp.osaka-u.ac.jp

Phys. Rev. D 113, 035013 – Published 13 February, 2026

DOI: https://doi.org/10.1103/cs4b-n8wf

Abstract

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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