$U_L(2)\bigotimes U_R(2) $ Model of Electro-Weak Interaction

Abstract

The $U_L(2)\bigotimes U_R(2) $ gauge model for the unified theory of the electromagnetic and weak interactions which is free from a prior self-interaction scalar field, is developed. Due to breaking the initial symmetry the $SU_L(2)\bigotimes U_R(1) $ Lagrangian is derived. The obtained $SU_L(2)\bigotimes U_R(1) $ Lagrangian contains the whole of terms corresponding both to free boson and fermion fields and to interaction between them, as it takes place in the Standard Model (SM) . We show that all boson fields, including the Higgs one, directly arise due to breaking the initial symmetry, and are generated by the initial gauge fields in contrary to the Standard Model consideration. The Higgs fields are studied in detail. A broad spectrum of states of the Higgs bosons is found. The masses of the Higgs particle in such states are calculated.