5D SU(3)W unification at TeV and cancellation of local gauge anomalies with split multiplets
Abstract
We consider the 5D gauge unification of SU(2)L× U(1)Y into SU(3)W at a TeV scale. Compactification of the extra dimension on an orbifold S1/(Z2× Z'2) allows fixed points where SU(2)L× U(1)Y representations can be assigned. We explain the long proton lifetime and the top-bottom mass hierarchy and etc. geometrically. We also show that local gauge anomalies on the orbifold can be exactly cancelled by a 5D Chern-Simons term with a jumping coefficient.
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