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The Singlet-Doublet model of dark matter is a minimal extension of theStandard Model with dark matter that is a mixture of a singlet and a non-chiralpair of electroweak doublet fermions. The stability of dark matter is ensuredby the typical parity symmetry, and, similar to a "Bino-Higgsino" system, theextra matter content improves gauge coupling unification. We revisit theexperimental constraints on the Singlet-Doublet dark matter model, combiningthe most relevant bounds from direct (spin independent and spin dependent) andindirect searches. We show that such comprehensive analysis sets strongconstraints on a large part of the 4-dimensional parameter space, closing thenotorious "blind-spots" of spin independent direct searches. Our resultsemphasise the complementarity of direct and indirect searches in probing darkmatter models in diverse mass scale regimes. We also discuss the LHC bounds onsuch scenario, which play a relevant role in the low mass region of the darkmatter candidate.

Singlet-Doublet Model: Dark matter searches and LHC constraints