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We construct a 5D $\mathbb{Z}_2$-symmetric model with three D3-branes: two IRones with negative tension located at the ends of an extra-dimensional intervaland a UV-brane with positive tension placed in the middle of the interval --IR-UV-IR model. The background solutions for this geometric setup are foundwithout and with taking into account the backreaction of the matter fields. A5D $SU(2)$ Higgs doublet is employed as the Goldberger-Wise stabilizing fieldin this geometry and solutions of the 5D coupled scalar-gravity equations arefound by using the superpotential method. Within this setup we investigate thelow-energy (zero-mode) effective theory for the bulk Standard Model (SM)bosonic sector. The $\mathbb{Z}_2$-even zero-modes correspond to known standarddegrees of freedom, whereas the $\mathbb{Z}_2$-odd zero modes might serve as adark sector. The effective low-energy scalar sector contains a scalar whichmimics the SM Higgs boson and a second stable scalar particle (dark-Higgs) is adark matter candidate; the latter is a component of the zero-mode of the$\mathbb{Z}_2$-odd Higgs doublet. The model that results from the$\mathbb{Z}_2$-symmetric background geometry resembles the Inert Two HiggsDoublet Model. The effective theory turns out to have an extra residual$SU(2)\times U(1)$ global symmetry that is reminiscent of an underlying 5Dgauge transformation for the odd degrees of freedom. At tree level the SM Higgsand the dark-Higgs have the same mass; however, when leading radiativecorrections are taken into account the dark-Higgs turns out to be heavier thanthe SM Higgs. Implications for dark matter are discussed; it is found that thedark-Higgs can provide only a small fraction of the observed dark matterabundance.

Higgs Dark Matter from a Warped Extra-Dimension -- the truncated-inert-doublet model