Inverse Seesaw from dynamical B-L breaking
Abstract
The Inverse Seesaw scenario relates the smallness of the neutrino masses to a small B-L breaking parameter. We investigate a possible dynamical generation of the Inverse Seesaw neutrino mass mechanism from the spontaneous breaking of a gauged U(1)B-L. To obtain an anomaly free theory we need to introduce additional fermions which exhibit an interesting phenomenology. Additionally, we predict a Z' boson associated to the broken B-L which preferentially interacts with the dark sector formed by the extra fermions making it particularly elusive.
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