Light Fermionic WIMP Dark Matter with Light Scalar Mediator

Understand

A light fermionic weakly interacting massive particle (WIMP) dark matter is investigated by studying its minimal renormalizable model, where it requires a scalar mediator to have an interaction between the WIMP and standard model particles.

• We perform a comprehensive likelihood analysis of the model involving the latest but robust constraints and those will be obtained in the near future.
• In addition, we pay particular attention to properly take the kinematically equilibrium condition into account.
• It is shown that near-future experiments and observations such as low-mass direct dark matter detections, flavor experiments and CMB observations play important roles to test the model.