Scalar Dark Matter in Scale Invariant Standard Model

Understand

We investigate single and two-component scalar dark matter scenarios in classically scale invariant standard model which is free of the hierarchy problem in the Higgs sector.

• We show that despite the very restricted space of parameters imposed by the scale invariance symmetry, both single and two-component scalar dark matter models overcome the direct and indirect constraints provided by the Planck/WMAP observational data and the LUX/Xenon100 experiment.
• We comment also on the radiative mass corrections of the classically massless scalon that plays a crucial role in our study.