{"id":217421,"date":"2025-07-09T02:21:11","date_gmt":"2025-07-09T07:21:11","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2025\/07\/elusive-romance-of-top-quark-pairs-observed-at-large-hadron-collider"},"modified":"2025-07-09T02:21:11","modified_gmt":"2025-07-09T07:21:11","slug":"elusive-romance-of-top-quark-pairs-observed-at-large-hadron-collider","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2025\/07\/elusive-romance-of-top-quark-pairs-observed-at-large-hadron-collider","title":{"rendered":"Elusive romance of top-quark pairs observed at Large Hadron Collider"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/elusive-romance-of-top-quark-pairs-observed-at-large-hadron-collider2.jpg\"><\/a><\/p>\n<p>An unforeseen feature in proton-proton collisions previously observed by the CMS experiment at CERN\u2019s Large Hadron Collider (LHC) has now been confirmed by its sister experiment ATLAS.<\/p>\n<p>The result, <a href=\"https:\/\/atlas.web.cern.ch\/Atlas\/GROUPS\/PHYSICS\/CONFNOTES\/ATLAS-CONF-2025-008\/\" target=\"_blank\">reported<\/a> yesterday at the European Physical Society\u2019s High-Energy Physics <a href=\"https:\/\/www.eps-hep2025.eu\/\" target=\"_blank\">conference<\/a> in Marseille, suggests that <a href=\"https:\/\/phys.org\/tags\/top+quarks\/\" rel=\"tag\" class=\"\">top quarks <\/a>\u2014the heaviest and shortest-lived of all the elementary particles\u2014can momentarily pair up with their antimatter counterparts to produce a \u201cquasi-bound-state\u201d called toponium. Further input based on complex theoretical calculations of the strong nuclear force\u2014called <a href=\"https:\/\/phys.org\/tags\/quantum+chromodynamics\/\" rel=\"tag\" class=\"\">quantum chromodynamics<\/a> (QCD)\u2014will enable physicists to understand the true nature of this elusive dance.<\/p>\n<p>High-energy collisions between protons at the LHC routinely produce top quark\u2013antiquark pairs. Measuring the probability, or cross section, of this process is both an important test of the Standard Model of particle physics and a powerful way to search for the existence of new particles that are not described by the theory.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>An unforeseen feature in proton-proton collisions previously observed by the CMS experiment at CERN\u2019s Large Hadron Collider (LHC) has now been confirmed by its sister experiment ATLAS. The result, reported yesterday at the European Physical Society\u2019s High-Energy Physics conference in Marseille, suggests that top quarks \u2014the heaviest and shortest-lived of all the elementary particles\u2014can momentarily [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[48,1617],"tags":[],"class_list":["post-217421","post","type-post","status-publish","format-standard","hentry","category-particle-physics","category-quantum-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/217421","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=217421"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/217421\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=217421"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=217421"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=217421"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}