{"id":85317,"date":"2018-11-30T10:43:27","date_gmt":"2018-11-30T18:43:27","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2018\/11\/physicists-finally-calculated-where-the-protons-mass-comes-from"},"modified":"2018-11-30T10:43:27","modified_gmt":"2018-11-30T18:43:27","slug":"physicists-finally-calculated-where-the-protons-mass-comes-from","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2018\/11\/physicists-finally-calculated-where-the-protons-mass-comes-from","title":{"rendered":"Physicists finally calculated where the proton\u2019s mass comes from"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/physicists-finally-calculated-where-the-protons-mass-comes-from.jpg\"><\/a><\/p>\n<p>A proton\u2019s mass is more than just the sum of its parts. And now scientists know just what accounts for the subatomic particle\u2019s heft.<\/p>\n<p>Protons are made up of even smaller particles called quarks, so you might expect that simply adding up the quarks\u2019 masses should give you the proton\u2019s mass. However, that sum is much too small to explain the proton\u2019s bulk. And new, detailed calculations show that <a href=\"https:\/\/journals.aps.org\/prl\/abstract\/10.1103\/PhysRevLett.121.212001\">only 9 percent of the proton\u2019s heft<\/a> comes from the mass of constituent quarks. The rest of the proton\u2019s mass comes from complicated effects occurring inside the particle, researchers report in the Nov. 23 <em>Physical Review Letters<\/em>.<\/p>\n<p>Quarks get their masses from a process connected to the Higgs boson, <a href=\"https:\/\/www.sciencenews.org\/article\/higgs-found\">an elementary particle first detected in 2012<\/a> (<em>SN: 7\/28\/12, p. 5<\/em>). But \u201cthe quark masses are tiny,\u201d says study coauthor and theoretical physicist Keh-Fei Liu of the University of Kentucky in Lexington. So, for protons, the Higgs explanation falls short.<\/p>\n<p><!-- Link: <a href=\"https:\/\/www.sciencenews.org\/article\/proton-mass-quarks-calculation\">https:\/\/www.sciencenews.org\/article\/proton-mass-quarks-calculation<\/a> --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A proton\u2019s mass is more than just the sum of its parts. And now scientists know just what accounts for the subatomic particle\u2019s heft. Protons are made up of even smaller particles called quarks, so you might expect that simply adding up the quarks\u2019 masses should give you the proton\u2019s mass. However, that sum is [\u2026]<\/p>\n","protected":false},"author":367,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[48],"tags":[],"class_list":["post-85317","post","type-post","status-publish","format-standard","hentry","category-particle-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/85317","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\/367"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=85317"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/85317\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=85317"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=85317"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=85317"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}