Orbifold Family Unification in SO(2N) Gauge Theory

Understand

We study the possibility of family unification on the basis of SO(2N) gauge theory on the five-dimensional space-time, $M^4\times S^1/Z_2$.

• Several SO(10), $SU(4) \times SU(2)_L \times SU(2)_R$ or SU(5) multiplets come from a single bulk multiplet of SO(2N) after the orbifold breaking.
• Other multiplets including brane fields are necessary to compose three families of quarks and leptons.