Assuming that neutrinos are not Majorana fermions and the right handed Dirac neutrino does not exist, we propose a model in which the second and the third generations of the leptons are composites, while the first generation is fundamental. The composite states are formed by the fundamental leptons and two new fundamental hidden scalar particles. In addition, there exist two hidden forces besides the SM interactions. The gauge symmetry SU(2)L ⊗U(1)Y ⊗U(1)h ⊗SU(2)h of the electroweak and the hidden forces breaks down to U(1)Y ⊗ U(1)h after the spontaneous symmetry breaking (SSB). We explain the neutrino masses in terms of the binding dynamics of a hidden force. The phenomenon of neutrino oscillation can also be explained by our model in a dynamical framework of the hidden forces.

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Assuming that the neutrinos are not Majorana particles and the righthanded Diarc neutrinos do not exist, we propose that all the three flavour neutrinos are not elementary. We posit that the electron and the electron type neutrino are fundamental particles, while the other members of the lepton family are composite states. In this regard, two complex hidden scalar fields and two new hidden fundamental forces are introduced. The gauge symmetry SU (2)L ⊗ U (1)Y ⊗ SU (2) h ⊗ U (1) h describing the Electroweak and the Hidden forces, breaks down to U (1)Q ⊗ U (1) h after the Higgs mechanism.