Abstract
We study a simple two-Higgs-doublet model in the Randall-Sundrum scenario, with an IR brane localized Higgs field and a second doublet arising from a tt̄ condensate due to strong Kaluza-Klein gluon effects. The effective two-Higgs-doublet model predicts that the ratio of the brane to condensate vacuum expectation values tanβ∼3. It also predicts a standard-model-like Higgs boson of mass O(100)GeV and a heavier scalar at the scale of the lowest Kaluza-Klein gluon mass, which we take to be M KK 1.5TeV. The pseudoscalar and the charged scalars are degenerate in mass at tree level and are O(M KK ). There are no tree-level flavor-changing neutral currents for the down-type quarks and the standard model results hold there. In contrast, flavor-changing neutral current decays of the t quark larger than in the standard model are expected. © 2010 The American Physical Society.