Multipartite interacting scalar dark matter in the light of updated LUX data

Abstract

We explore constraints on multipartite dark matter (DM) framework composed of\nsinglet scalar DM interacting with the Standard Model (SM) through Higgs portal\ncoupling. We compute relic density and direct search constraints including the\nupdated LUX bound for two component scenario with non-zero interactions between\ntwo DM components in $\\mathcal{Z}_2\\times \\mathcal{Z}_2^{'}$ framework in\ncomparison with the one having $\\mathcal{O}(2)$ symmetry. We point out\navailability of a significantly large region of parameter space of such a\nmultipartite model with DM-DM interactions.\n