{"id":4154,"date":"2026-10-13T11:31:11","date_gmt":"2026-10-13T09:31:11","guid":{"rendered":"https:\/\/lpsc-wordpress.in2p3.fr\/?page_id=4154"},"modified":"2026-10-13T15:13:55","modified_gmt":"2026-10-13T13:13:55","slug":"atlas-2","status":"publish","type":"page","link":"https:\/\/lpsc-wordpress.in2p3.fr\/?page_id=4154&lang=en","title":{"rendered":"ATLAS"},"content":{"rendered":"\n
\n\t\t\t\t\t\"atlas\"\n\t<\/figure>\n

\n\t\t\tATLAS\t<\/h2>\n\t

ATLAS is the largest particle detector currently in operation at CERN’s Large Hadron Collider. The collision data it records are analyzed to study the Standard Model of particle physics through highly precise measurements and to search for signs of new physics beyond the Standard Model.<\/p>\n\t\t\t\tOverview\n\t\t\t\tTeam\n\t\t\t\tSkills\n\t\t\t\tPublications\n\t\t\t\tList of Theses\n\t\t\t\tTechnical Achievements\n\t\t\t\tEducation\n\t\t\t\tHistory\n\t\t\t\tInterns, postdocs, former members\n\t\t\t\t\t\t\tOverview\n\t\t\t\t

ATLAS (A Toroid LHC ApparatuS) is one of two general-purpose experiments at the LHC, the most powerful proton-proton collider ever built, located near Geneva on the French-Swiss border. This colossal detector (20 m high) is installed approximately 100 m underground at \u00ab\u00a0Point 1\u00a0\u00bb of the LHC. It was designed and is operated by a collaboration of more than 2,900 people from 41 countries. It has been collecting data since 2009.<\/p>\n

The LPSC has been involved in its construction since 1991. Over the years, its contributions have spanned several areas: liquid argon calorimetry, in-situ cryogenics, development of the core analysis software, development of metadata processing (AMI), and a new internal track detector (IBL)… Since 2016, the group has been involved in replacing the internal track detector, which is scheduled to begin operation around 2030 for the High-Luminosity LHC (HL-LHC) phase.<\/p>\n

In terms of data analysis, the group has covered a wide range of fields. In 2024, it is particularly involved in the following topics: Higgs boson pair production and the search for long-lived exotic particles. It also contributes to the reconstruction of the events used in these analyses, notably through the calibration of hadronic jet energy using artificial intelligence techniques and the identification of electrons and photons.<\/p>\n\t\t\t\t\t\t\tTeam\n\t\t\t\t

Team Members<\/h3>\n

The ATLAS team consists of 10 members (3 on fixed-term contracts)<\/strong><\/p>\n\n\n\n
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The team works closely with the laboratory’s technical departments<\/strong><\/p>\n