{"paper":{"title":"Two-Component Dark Matter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Aleksandra Drozd, Bohdan Grzadkowski, Jose Wudka, Subhaditya Bhattacharya","submitted_at":"2013-09-11T22:15:25Z","abstract_excerpt":"We study an extension of the Standard Model (SM) with two interacting cold Dark Matter (DM) candidates: a neutral Majorana fermion ($\\nu$) and a neutral scalar singlet ($\\varphi$). The scalar $\\varphi$ interacts with the SM through the \"Higgs portal\" coupling while $\\nu$ at the tree level interacts only with $\\varphi$ through Yukawa interactions. The relic abundance of $\\nu$ and $\\varphi$ is found by solving the Boltzmann equations numerically; for the case $m_\\nu > m_\\varphi$ we also derive a reliable approximate analytical solution. Effects of the interaction between the two DM components ar"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.2986","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}