Natural TeV-scale left-right seesaw mechanism for neutrinos and experimental tests

We present a TeV-scale left-right ultraviolet completion of the type-I seesaw for neutrino masses based on the SU(2)(L) x SU(2)(R) x U(1)(B-L) gauge group without parity, which leads to large'' light-heavy neutrino mixing while keeping the neutrino masses small in a natural manner guaranteed by discrete symmetries. We point out specific observable implications of this class of models if the SU(2)(R)-breaking scale is of order 5 TeV, in searches for lepton flavor violating processes such as mu -> e gamma, mu -> 3e and mu -> e conversion in nuclei, and lepton number violating processes such as neutrinoless double beta decay as well as at the LHC. In particular, if the upper limit on BR(mu -> e gamma) improves by 1 order of magnitude, a large range of the parameters of the model would be ruled out.