Zee-Babu type model with U(1)Lμ - Lτ gauge symmetry
Abstract
We extend the Zee-Babu model introducing local U(1)Lμ - Lτ symmetry with several singly-charged bosons. We find a predictive neutrino mass texture in a simple hypothesis that mixings among singly-charged bosons are negligible. Also lepton flavor violations are less constrained compared with the original model. Then we explore testability of the model focussing on a doubly-charged boson physics at the LHC and the ILC.
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