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  • Open Access

Radiative inverse seesaw model with hidden U(1) gauge symmetry enhancing lepton g−2

Takaaki Nomura1,* and Hiroshi Okada2,3,†

  • 1College of Physics, Sichuan University, Chengdu 610065, China
  • 2Department of Physics, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
  • 3Department of Physics, Henan Normal University, Xinxiang 453007, China

  • *Contact author: nomura@scu.edu.cn
  • †Contact author: hiroshi3okada@htu.edu.cn
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Phys. Rev. D 112, 115025 – Published 12 December, 2025

DOI: https://doi.org/10.1103/7wwk-41yh

Abstract

We propose a new inverse seesaw model based on hidden local U(1) symmetry framework where the inverse seesaw mechanism is induced at one loop level. A Majorana mass term of singlet fermion is forbidden by the U(1) symmetry and it is generated at one-loop level by introducing relevant particle contents to get loop diagram, inducing inverse seesaw mechanism. The same particle contents also contribute to lepton magnetic(electric) dipole moment and lepton flavor violating decays without chiral suppression. We can then obtain sizable muon anomalous magnetic dipole moment that accommodate with deviation from the standard model prediction. The constraints from lepton flavor violating decays and electron magnetic(electric) dipole moment are also discussed to explore testability of the model.

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Information

Phys. Rev. D 112, 115025– Published 12 December, 2025
  • Received 5 April 2024
  • Accepted 30 October 2025
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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