Z 2 × Z 2 Discrete Symmetry in the Left-Right Symmetric Model SU (2) L × SU (2) R × U (1) B-L

From the point that the Higgs fields can be regarded as the gauge fields on a discrete group, we construct a gauge theory of the left-right symmetric model SU(2)L × SU(2)R × U(1)B-L (LRSM) over Z2 ⊙ Z2 discrete symmetry.