Probing Multicomponent Extension of Inert Doublet Model with a Vector Dark Matter

Understand

Although theoretically well-motivated as a minimal consistent Dark Matter (DM) model, the Inert Doublet Model (IDM) fell short in explaining the existence of DM in the intermediate mass region ($100-500$ GeV).

• We try to address this problem by introducing an additional vector dark matter.
• We show that the relic density of inert dark matter candidate can be enhanced significantly with new interactions in the intermediate mass region $100-500$ GeV in the multicomponent dark matter model when compared with the usual single component inert doublet model.
• We also show that we can get a reasonable excess in the $\ /\!\!\! E_T$ distribution if we do not apply a very hard $\ /\!\!\! E_T$ cut on it as is customary in any dark matter search at the LHC.