A compilation of the allowed regions and the constraints for the “standard” SI contact interaction in the () plane. The plots on the top row are taken from [53] (left) and from [46] (right), while those in the bottom row are taken from [51] (left) and from [54] (right). The galactic halo has been assumed in the form of an isothermal sphere with velocity dispersion km/s and local DM energy density GeV/cm3.
