Electroweak symmetry breaking from the soft portal into dark matter and prediction for direct detection.
Scalar dark matter (DM) can have dimensionful coupling to the Higgs boson-the soft portal into DM-which is predicted to be unsuppressed by the underlying SO(10) grand unified theory (GUT). The dimensionful coupling can be large, μ/v>>1, without spoiling the perturbativity of low energy theory up to the GUT scale. We show that the soft portal into DM naturally triggers radiative electroweak symmetry breaking (EWSB) via large 1-loop DM corrections to the effective potential. In this scenario, EWSB, the DM thermal freeze-out cross section, and DM scattering on nuclei are all dominated by the same coupling, predicting the DM mass range to be 700  GeV<M(DM)<2  TeV. The spin-independent direct detection cross section is predicted to be just below the present experimental bounds.
Kadastik
Mario
M
National Institute of Chemical Physics and Biophysics, Ravala 10, Tallinn 10143, Estonia.
Kannike
Kristjan
K
Racioppi
Antonio
A
Raidal
Martti
M