{"id":216236,"date":"2025-06-19T05:25:45","date_gmt":"2025-06-19T10:25:45","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2025\/06\/expanding-the-border-of-superheavy-nuclei-new-seaborgium-isotope-discovered"},"modified":"2025-06-19T05:25:45","modified_gmt":"2025-06-19T10:25:45","slug":"expanding-the-border-of-superheavy-nuclei-new-seaborgium-isotope-discovered","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2025\/06\/expanding-the-border-of-superheavy-nuclei-new-seaborgium-isotope-discovered","title":{"rendered":"Expanding the border of superheavy nuclei\u2014new seaborgium isotope discovered"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/expanding-the-border-of-superheavy-nuclei-new-seaborgium-isotope-discovered.jpg\"><\/a><\/p>\n<p>An international research team led by GSI\/FAIR, Johannes Gutenberg University Mainz (JGU) and Helmholtz Institute Mainz (HIM) has succeeded in the production of a new seaborgium isotope. In the experiment conducted at the GSI\/FAIR accelerator facilities, 22 nuclei of seaborgium-257 could be detected. The results were <a href=\"https:\/\/link.aps.org\/doi\/10.1103\/s7hr-y7zq\" target=\"_blank\">published<\/a> in the journal <i>Physical Review Letters<\/i> and highlighted as an \u201cEditor\u2019s Suggestion.\u201d<\/p>\n<p>With the newest addition, 14 isotopes of the artificial superheavy element seaborgium (<a href=\"https:\/\/phys.org\/tags\/atomic+number\/\" rel=\"tag\" class=\"\">atomic number<\/a> 106) are now known. For the production of seaborgium-257, an intense chromium-52 beam from the GSI\/FAIR linear accelerator UNILAC impinged onto high-quality lead-206 targets.<\/p>\n<p>Using the highly efficient detection system of the gas-filled recoil separator TASCA (TransActinide Separator and Chemistry Apparatus), 22 decays of seaborgium-257 nuclei were detected in total: 21 fission events and one alpha decay. The half-life of the new isotope, situated just next to the enhanced neutron shell gap at 152, is 12.6 milliseconds.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>An international research team led by GSI\/FAIR, Johannes Gutenberg University Mainz (JGU) and Helmholtz Institute Mainz (HIM) has succeeded in the production of a new seaborgium isotope. In the experiment conducted at the GSI\/FAIR accelerator facilities, 22 nuclei of seaborgium-257 could be detected. The results were published in the journal Physical Review Letters and highlighted [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[],"class_list":["post-216236","post","type-post","status-publish","format-standard","hentry","category-chemistry"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/216236","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=216236"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/216236\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=216236"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=216236"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=216236"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}