- Tim M.P. Tait (University of California, Irvine)
Dark matter direct searches place very stringent constraints on the possible DM candidates proposed in extensions of the Standard Model. There are however models where these constraints are avoided. One of the simplest and most striking examples comes from a straightforward Higgs portal pseudoscalar DM model featured with a softly broken U(1) symmetry. In this model the tree-level DM-nucleon...