Three benchmark chiral U(1)_X models cannot simultaneously explain the electron (g-2) anomaly and pass current neutrino-scattering bounds, so they are excluded as complete new-physics explanations.
Gauged B-3L_tau and Radiative Neutrino Masses
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abstract
If the minimal standard model of quarks and leptons is extended to include just a righthanded partner to nu_tau, then the quantum number B-3L_tau can be added as a gauge symmetry without the appearance of anomalies. A suitable extension of the scalar sector allows one neutrino to have a seesaw mass, and the other two to have radiative masses, with acceptable phenomenological values for neutrino oscillations. The B-3L_tau gauge boson may be light and be observable through its decay into tau^+ tau^-.
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A Compatibility Check: Low-Scale Chiral $U(1)_X$ Theories Vs. $(g-2)_e$ Anomaly
Three benchmark chiral U(1)_X models cannot simultaneously explain the electron (g-2) anomaly and pass current neutrino-scattering bounds, so they are excluded as complete new-physics explanations.