Electroweak breaking and Dark Matter from the common scale

Understand

We propose a classically scale invariant extension of the Standard Model where the electroweak symmetry breaking and the mass of the Dark Matter particle come from the common scale.

• We introduce $U(1)_X$ gauge symmetry and $X$-charged scalar $\Phi$ and Majorana fermion $N$.
• Scale invariance is broken via Coleman-Weinberg mechanism providing the vacuum expectation value of the scalar $\Phi$.
• Stability of the dark matter candidate $N$ is guaranteed by a remnant $Z_2$ symmetry.