Little Higgs Models for Non-Universality Fermion

Abstract

We introduce the fermion non-universality into the little Higgs models SU(5)/SO(5), SU(6)/Sp(6) and study the phenomenology of the new models. We find that if we change the transform property of the observed fermions under the extended [SU(2)×U(1)] 2 , the cancellation of the one-loop quadratically divergent correction to the Higgs mass arising from gauge bosons will not be changed, whereas the phenomenology at W -pole, Z-pole and low q 2 will be changed.