{"id":226546,"date":"2025-12-05T00:35:30","date_gmt":"2025-12-05T06:35:30","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2025\/12\/earlier-ultra-relativistic-freeze-out-could-revive-a-decades-old-theory-for-dark-matter"},"modified":"2025-12-05T00:35:30","modified_gmt":"2025-12-05T06:35:30","slug":"earlier-ultra-relativistic-freeze-out-could-revive-a-decades-old-theory-for-dark-matter","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2025\/12\/earlier-ultra-relativistic-freeze-out-could-revive-a-decades-old-theory-for-dark-matter","title":{"rendered":"Earlier ultra-relativistic freeze-out could revive a decades-old theory for dark matter"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/earlier-ultra-relativistic-freeze-out-could-revive-a-decades-old-theory-for-dark-matter2.jpg\"><\/a><\/p>\n<p>A new theory for the origins of dark matter suggests that fast-moving, neutrino-like dark particles could have decoupled from Standard Model particles far earlier than previous theories had suggested.<\/p>\n<p>Through new research <a href=\"https:\/\/link.aps.org\/doi\/10.1103\/zk9k-nbpj\" target=\"_blank\">published<\/a> in <i>Physical Review Letters<\/i>, a team led by Stephen Henrich and Keith Olive at the University of Minnesota proposes that this \u201c<a href=\"https:\/\/phys.org\/news\/2022-12-scientists-hints-dark-photons.html?utm_source=embeddings&utm_medium=related&utm_campaign=internal\" rel=\"related\">ultra-relativistic freeze-out<\/a>\u201d mechanism could have produced dark matter particles which are almost undetectable, but still compatible with the observed history of the universe.<\/p>\n<p>Despite comprising some 85% of the universe\u2019s total mass, dark matter has never been seen to interact with regular matter except via gravity, making its origins one of the most enduring mysteries in cosmology.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A new theory for the origins of dark matter suggests that fast-moving, neutrino-like dark particles could have decoupled from Standard Model particles far earlier than previous theories had suggested. Through new research published in Physical Review Letters, a team led by Stephen Henrich and Keith Olive at the University of Minnesota proposes that this \u201cultra-relativistic [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33,48],"tags":[],"class_list":["post-226546","post","type-post","status-publish","format-standard","hentry","category-cosmology","category-particle-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/226546","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/427"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=226546"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/226546\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=226546"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=226546"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=226546"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}