{"id":1524,"date":"2025-02-08T15:53:32","date_gmt":"2025-02-08T15:53:32","guid":{"rendered":"https:\/\/www.cns.s.u-tokyo.ac.jp\/wp-homepage\/?page_id=1524"},"modified":"2025-04-21T13:36:21","modified_gmt":"2025-04-21T13:36:21","slug":"quark","status":"publish","type":"page","link":"https:\/\/www.cns.s.u-tokyo.ac.jp\/cns\/en\/research\/quark\/","title":{"rendered":"Quark Physics"},"content":{"rendered":"<div class=\"wp-block-cover\" style=\"min-height:314px;aspect-ratio:unset;\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"427\" class=\"wp-block-cover__image-background wp-image-1654\" alt=\"\" src=\"https:\/\/www.cns.s.u-tokyo.ac.jp\/wp-homepage\/wp-content\/uploads\/2025\/02\/Quark.jpg\" data-object-fit=\"cover\" srcset=\"https:\/\/www.cns.s.u-tokyo.ac.jp\/cns\/wp-content\/uploads\/2025\/02\/Quark.jpg 640w, https:\/\/www.cns.s.u-tokyo.ac.jp\/cns\/wp-content\/uploads\/2025\/02\/Quark-300x200.jpg 300w, https:\/\/www.cns.s.u-tokyo.ac.jp\/cns\/wp-content\/uploads\/2025\/02\/Quark-18x12.jpg 18w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim\" style=\"background-color:#480101\"><\/span><div class=\"wp-block-cover__inner-container has-global-padding is-layout-constrained wp-block-cover-is-layout-constrained\">\n<p class=\"has-text-align-center animated fadeIn delay-200ms has-base-2-color has-text-color has-link-color has-xx-large-font-size wp-elements-9731b44c725a8b8bf41b8aa9118613a5\" style=\"font-style:normal;font-weight:900\">Quark Physics<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group alignwide has-base-background-color has-background has-global-padding is-layout-constrained wp-container-core-group-is-layout-c7a42c40 wp-block-group-is-layout-constrained\" style=\"margin-top:0;margin-bottom:0;padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--50)\">\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-549b0c86 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column has-border-color has-accent-4-border-color is-layout-flow wp-container-core-column-is-layout-119bc444 wp-block-column-is-layout-flow\" style=\"box-shadow:var(--wp--preset--shadow--deep);flex-basis:100%\">\n<p class=\"has-base-2-background-color has-background has-heading-font-family has-medium-font-size\" style=\"line-height:1.2\">One of the cornerstones of the Standard Model in particle and nuclear physics\u2014Quantum Chromodynamics (QCD)\u2014predicts that, under extreme temperatures on the order of 150\u2013200 MeV, ordinary hadronic matter undergoes a phase transition into a deconfined state of quarks and gluons called the Quark\u2013Gluon Plasma (QGP). This plasma recreates, on a microscopic scale, the \u201cprimordial fireball\u201d that filled the universe just after the Big Bang. \nThe only way to generate QGP in the laboratory is through high-energy heavy-ion collisions. Such experiments are currently performed at\nBrookhaven National Laboratory\u2019s Relativistic Heavy Ion Collider (RHIC) and CERN\u2019s Large Hadron Collider (LHC).\nOur Quark Physics Group carries out collision experiments at RHIC and the LHC with the following objectives:<\/p>\n\n\n\n<ul style=\"padding-top:0;padding-right:var(--wp--preset--spacing--40);padding-bottom:0;padding-left:var(--wp--preset--spacing--40)\" class=\"wp-block-list\">\n<li>Demonstration of Quark-Gluon Plasma<\/li>\n\n\n\n<li style=\"padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\">Perform precision tests of QCD in its non-perturbative regime, revealing the emergent properties of a hot, strongly interacting quark-gluon medium<\/li>\n\n\n\n<li>Map out the phase structure of QCD matter<\/li>\n\n\n\n<li>Reconstruct the QCD phase transitions of the early universe, such as chiral symmetry restoration, quark mass generation, and the confinement mechanism that binds quarks into hadrons<\/li>\n<\/ul>\n\n\n\n<p class=\"has-base-2-background-color has-background has-heading-font-family has-medium-font-size\" style=\"line-height:1.2\">The dynamics of individual quarks and gluons can be described by quantum chromodynamics, but we are aiming to discover new material states and new properties that emerge when large numbers of these fundamental particles come together.<br>There is some very interesting physics hidden there that is difficult to predict even theoretically.<br><br><br><a href=\"https:\/\/sites.google.com\/cns.s.u-tokyo.ac.jp\/quark-physics-group\/\">Gunji Lab<\/a><br><a href=\"https:\/\/sites.google.com\/cns.s.u-tokyo.ac.jp\/quark-physics-group\/%E3%83%9B%E3%83%BC%E3%83%A0\/research\/quark-gluon-plasma?authuser=0\">QGP<\/a><br><a href=\"https:\/\/sites.google.com\/cns.s.u-tokyo.ac.jp\/quark-physics-group\/%E3%83%9B%E3%83%BC%E3%83%A0\/research\/qcd-phase-diagram?authuser=0\">Phase structure of QCD matter<br><\/a><a href=\"https:\/\/sites.google.com\/cns.s.u-tokyo.ac.jp\/quark-physics-group\/%E3%83%9B%E3%83%BC%E3%83%A0\/research\/relativistic-heavy-ion-collisions?authuser=0\">Heavy-ion collision at high energy<\/a><br><\/p>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>\u73fe\u5728\u306e\u7d20\u7c92\u5b50\u30fb\u539f\u5b50\u6838\u7269\u7406\u5b66\u306e\u6a19\u6e96\u6a21\u578b\u3092\u69cb\u6210\u3059\u308b\u7406\u8ad6\u306e\u4e00\u3064\u3067\u3042\u308b\u300c\u91cf\u5b50\u8272\u529b\u5b66\uff08QCD\uff09\u300d\u306b\u3088\u308b\u3068\u3001 \u5f37\u3044\u76f8\u4e92\u4f5c\u7528 [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"parent":1640,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"wp-custom-template-v1-2","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-1524","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.cns.s.u-tokyo.ac.jp\/cns\/en\/wp-json\/wp\/v2\/pages\/1524","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cns.s.u-tokyo.ac.jp\/cns\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.cns.s.u-tokyo.ac.jp\/cns\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.cns.s.u-tokyo.ac.jp\/cns\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cns.s.u-tokyo.ac.jp\/cns\/en\/wp-json\/wp\/v2\/comments?post=1524"}],"version-history":[{"count":8,"href":"https:\/\/www.cns.s.u-tokyo.ac.jp\/cns\/en\/wp-json\/wp\/v2\/pages\/1524\/revisions"}],"predecessor-version":[{"id":4229,"href":"https:\/\/www.cns.s.u-tokyo.ac.jp\/cns\/en\/wp-json\/wp\/v2\/pages\/1524\/revisions\/4229"}],"up":[{"embeddable":true,"href":"https:\/\/www.cns.s.u-tokyo.ac.jp\/cns\/en\/wp-json\/wp\/v2\/pages\/1640"}],"wp:attachment":[{"href":"https:\/\/www.cns.s.u-tokyo.ac.jp\/cns\/en\/wp-json\/wp\/v2\/media?parent=1524"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}