摘要
We construct a new gauged U(1)l lepton-number model that is anomaly-free for each standard model generation. The active neutrino masses are radiatively generated with a minimal scalar sector. The phenomenology and collider signals are studied. The interference effects among the new gauge boson, Z, photon, and Z boson can be probed at the future e+e- colliders even if the center-of-mass energy is below the mass of Z. Moreover, the electroweak precision sets a stringent bound on the mass splitting of the new lepton doublets.