{"id":2129,"date":"2020-06-26T14:06:40","date_gmt":"2020-06-26T05:06:40","guid":{"rendered":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/?p=2129"},"modified":"2020-06-26T14:06:40","modified_gmt":"2020-06-26T05:06:40","slug":"superkekb-collider-achieves-the-worlds-highest-luminosity","status":"publish","type":"post","link":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/blog\/2020\/06\/26\/2129\/","title":{"rendered":"SuperKEKB collider achieves the world’s highest luminosity"},"content":{"rendered":"
\"\"
Fig. 1\u00a0 The instantaneous luminosity of SuperKEKB measured at 5-minute intervals from Fall 2019 to June 22, 2020. Values are on-line measurements and contain an approximate 1% error. Credit: KEK<\/small><\/figcaption><\/figure>\n

Japan’s High Energy Accelerator Research Organization (KEK) has been steadily improving\u00a0the performance of its flagship electron-positron collider, SuperKEKB, since it produced its first electron-positron collisions in April 2018.\u00a0 At 20:34 on 15th June 2020, SuperKEKB achieved the world’s highest instantaneous luminosity for a colliding-beam accelerator, setting a record of 2.22\u00d71034<\/sup> cm-2<\/sup> s-1<\/sup>. Previously, the KEKB collider, which was SuperKEKB’s predecessor and was operated by KEK from 1999 to 2010, had achieved the world\u2019s highest luminosity, reaching 2.11\u00d71034<\/sup> cm-2<\/sup> s-1<\/sup>.\u00a0KEKB’s record was surpassed in 2018, when the LHC proton-proton collider\u00a0at the European Organization for Nuclear Research (CERN) overtook the KEKB luminosity at 2.14\u00d71034<\/sup> cm-2<\/sup> s-1<\/sup>. SuperKEKB’s recent achievement returns the title of world\u2019s highest luminosity colliding-beam accelerator to KEK. (The current record is 2.40\u00d71034<\/sup> cm-2<\/sup> s-1<\/sup>, <\/sup>obtained at 00:53 JST on June 21st.)<\/p>\n

For more details, please see Press release (KEK)<\/a>.<\/p>\n

 <\/p>\n

KMI members play leading roles in various aspects of the Belle II Experiment. Prof. Iijima as the spokesperson of Belle II Collaboration, Associate prof. Alessandro Gaz as the Physics Coordinator, Associate prof. Kodai Matsuoka, Assistant prof. Yuji Kato, and Assistant prof. Qidong Zhou are actively involved in the project.\u00a0<\/span><\/p>\n

 <\/p>\n

\n

This record is only a small step toward the design luminosity but not an easy step. It is a big achievement after overcoming many difficulties. Many small steps like this will lead us to accumulate more data and to approach the mysteries of the universe. (Associate prof. Kodai Matsuoka)<\/span><\/p>\n<\/blockquote>\n

\"\"
Collaborators rejoicing over the world record<\/small><\/figcaption><\/figure>\n
Related Links<\/h6>\n

Press release (KEK)<\/a><\/p>\n

Related articles (KMI)<\/a><\/p>\n

 <\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Japan’s High Energy Accelerator Research Organization (KEK) has been steadily improving\u00a0the performance of its flagship electron-positron collider, SuperKEKB, since it produced its first electron-positron collisions in April 2018.\u00a0 At 20:34 on 15th June 2020, SuperKEKB achieved the world’s highest instantaneous luminosity for a colliding-beam accelerator, setting a record of 2.22\u00d71034 cm-2 s-1. Previously, the KEKB collider, which was SuperKEKB’s predecessor and was operated by KEK from 1999 to 2010, had achieved the world\u2019s highest luminosity, reaching 2.11\u00d71034 cm-2 s-1.\u00a0KEKB’s record … <\/p>\n","protected":false},"author":4,"featured_media":2143,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[65,117,118],"acf":[],"yoast_head":"\nSuperKEKB collider achieves the world's highest luminosity - KMI - Nagoya University<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/blog\/2020\/06\/26\/2129\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SuperKEKB collider achieves the world's highest luminosity - KMI - Nagoya University\" \/>\n<meta property=\"og:description\" content=\"Japan’s High Energy Accelerator Research Organization (KEK) has been steadily improving\u00a0the performance of its flagship electron-positron collider, SuperKEKB, since it produced its first electron-positron collisions in April 2018.\u00a0 At 20:34 on 15th June 2020, SuperKEKB achieved the world’s highest instantaneous luminosity for a colliding-beam accelerator, setting a record of 2.22\u00d71034 cm-2 s-1. 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