{"work":{"id":"c326bfca-70b1-4855-9755-68c6b3e4ed2b","openalex_id":null,"doi":null,"arxiv_id":"0901.4117","raw_key":null,"title":"Asymmetric Dark Matter","authors":null,"authors_text":"D","year":2009,"venue":"hep-ph","abstract":"We consider a simple class of models in which the relic density of dark matter is determined by the baryon asymmetry of the universe. In these models a $B - L$ asymmetry generated at high temperatures is transfered to the dark matter, which is charged under $B - L$. The interactions that transfer the asymmetry decouple at temperatures above the dark matter mass, freezing in a dark matter asymmetry of order the baryon asymmetry. This explains the observed relation between the baryon and dark matter densities for dark matter mass in the range 5--15 GeV. The symmetric component of the dark matter can annihilate efficiently to light pseudoscalar Higgs particles $a$, or via $t$-channel exchange of new scalar doublets. The first possibility allows for $h^0 \\to aa$ decays, while the second predicts a light charged Higgs-like scalar decaying to $\\tau\\nu$. Direct detection can arise from Higgs exchange in the first model, or a nonzero magnetic moment in the second. In supersymmetric models, the would-be LSP can decay into pairs of dark matter particles plus standard model particles, possibly with displaced vertices.","external_url":"https://arxiv.org/abs/0901.4117","cited_by_count":null,"metadata_source":"pith","metadata_fetched_at":"2026-07-04T18:40:02.553254+00:00","pith_arxiv_id":"0901.4117","created_at":"2026-05-11T02:30:53.579805+00:00","updated_at":"2026-07-04T18:40:02.553254+00:00","title_quality_ok":false,"display_title":"Asymmetric Dark Matter","render_title":"Asymmetric Dark Matter"},"hub":{"state":{"work_id":"c326bfca-70b1-4855-9755-68c6b3e4ed2b","tier":"hub","tier_reason":"10+ Pith inbound or 1,000+ external citations","pith_inbound_count":15,"external_cited_by_count":null,"distinct_field_count":5,"first_pith_cited_at":"2019-07-18T12:03:32+00:00","last_pith_cited_at":"2026-06-29T18:01:06+00:00","author_build_status":"not_needed","summary_status":"needed","contexts_status":"needed","graph_status":"needed","ask_index_status":"not_needed","reader_status":"not_needed","recognition_status":"not_needed","updated_at":"2026-08-22T00:00:07.070923+00:00","tier_text":"hub"},"tier":"hub","role_counts":[{"context_role":"background","n":3}],"polarity_counts":[{"context_polarity":"background","n":3}],"runs":{},"summary":{},"graph":{},"authors":[]}}