{"arxiv_id":"hep-ph/0402267","title":"Explaining $\\Omega_{Baryon} \\approx 0.2 \\Omega_{Dark}$ through the synthesis of ordinary matter from mirror matter: a more general analysis","abstract":"The emerging cosmological picture is of a spatially flat universe composed predominantly of three components: ordinary baryons ($\\Omega_B \\approx 0.05$), non-baryonic dark matter ($\\Omega_{Dark} \\approx 0.22$) and dark energy ($\\Omega_{\\Lambda} \\approx 0.7$). We recently proposed that ordinary matter was synthesised from mirror matter, motivated by the argument that the observed similarity of $\\Omega_B$ and $\\Omega_{Dark}$ suggests an underlying similarity between the fundamental properties of ordinary and dark matter particles. In this paper we generalise the previous analysis by considering a wider class of effective operators that non-gravitationally couple the ordinary and mirror sectors. We find that while all considered operators imply $\\Omega_{Dark} = $ few$\\times \\Omega_B$, only a subset quantitatively reproduce the observed ratio $\\Omega_B/\\Omega_{Dark} \\approx 0.20$. The $\\sim 1$ eV mass scale induced through these operators hints at a connection with neutrino oscillation physics.","primary_cat":"hep-ph","cross_cats":["astro-ph"],"submitted_at":"2004-02-25T23:20:43+00:00","latest_version":2,"source":"arxiv","source_label":"arXiv","source_url":null,"has_pdf":true,"has_source":false,"verdict":null,"confidence":null,"one_line_summary":null,"novelty_score":null,"correctness_risk":null,"formal_verification":null,"upvotes":0,"downvotes":0,"pith_score":0,"inbound_count":15,"_links":{"html":"https://pith.science/paper/hep-ph/0402267","verdict":"/api/v1/verdicts/hep-ph/0402267"}}