SU(4)L×U(1)X models with little Higgs mechanism

Abstract

We study the aspects of the fermion and gauge boson sectors in SU(4) L×U(1)X models with a little Higgs mechanism. We introduce a new setup of fermions, which ensures the cancellation of gauge anomaly and the cancellation of one-loop quadratic divergence to the Higgs mass for all fermion multiplets and gauge bosons. We explicitly present the interactions between the standard model fermions and the heavy gauge bosons to discuss the phenomenological implications of extra Z⊃′ and Z⊃′⊃′ gauge bosons based on recent experimental data.. © 2010 The American Physical Society.