{"id":237603,"date":"2026-05-22T19:10:57","date_gmt":"2026-05-23T00:10:57","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2026\/05\/atlas-observes-new-composite-particle"},"modified":"2026-05-22T19:10:57","modified_gmt":"2026-05-23T00:10:57","slug":"atlas-observes-new-composite-particle","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2026\/05\/atlas-observes-new-composite-particle","title":{"rendered":"ATLAS observes new composite particle"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/atlas-observes-new-composite-particle.jpg\"><\/a><\/p>\n<p>The ATLAS Collaboration reports the first observation of the B<sub>c<\/sub>*<sup>+<\/sup> meson, an excited counterpart of a particle made up of a charm quark and a bottom antiquark.<\/p>\n<p>Written by:<\/p>\n<p>ATLAS Collaboration.<\/p>\n<p>\u2014<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The ATLAS Collaboration reports the first observation of the Bc*+ meson, an excited counterpart of a particle made up of a charm quark and a bottom antiquark. Written by: ATLAS Collaboration. \u2014<\/p>\n","protected":false},"author":662,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[48],"tags":[],"class_list":["post-237603","post","type-post","status-publish","format-standard","hentry","category-particle-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/237603","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\/662"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=237603"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/237603\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=237603"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=237603"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=237603"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}