{"id":"W4366464688","doi":"10.1140/epjc/s10052-023-11573-0","title":"Observation of four-top-quark production in the multilepton final state with the ATLAS detector","year":2023,"lang":"lv","type":"article","venue":"The European Physical Journal C","topic":"Particle physics theoretical and experimental studies","field":"Physics and Astronomy","cited_by":56,"is_retracted":false,"has_abstract":true,"ca_institutions":"York University; University of British Columbia; Simon Fraser University; TRIUMF; Carleton University; University of Alberta; Université de Montréal; Institute of Particle Physics; University of Victoria; McGill University; University of Toronto","funders":"European Social Fund; Fundação para a Ciência e a Tecnologia; Institut National de Physique Nucléaire et de Physique des Particules; Agencia Nacional de Promoción Científica y Tecnológica; Science and Technology Facilities Council; Natural Sciences and Engineering Research Council of Canada; Narodowa Agencja Wymiany Akademickiej; Centre National pour la Recherche Scientifique et Technique; Centre National de la Recherche Scientifique; Israel Science Foundation; Japan Society for the Promotion of Science; Conselho Nacional de Desenvolvimento Científico e Tecnológico; Bundesministerium für Wissenschaft, Forschung und Wirtschaft; Generalitat Valenciana; Austrian Science Fund; European Regional Development Fund; Bundesministerium für Bildung und Forschung; Ministerstvo Školství, Mládeže a Tělovýchovy; U.S. Department of Energy; National Natural Science Foundation of China; Fundação de Amparo à Pesquisa do Estado de São Paulo; H2020 Marie Skłodowska-Curie Actions; Javna Agencija za Raziskovalno Dejavnost RS; Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung; Nederlandse Organisatie voor Wetenschappelijk Onderzoek; Ministry of Education, Culture, Sports, Science and Technology; Agence Nationale de la Recherche; National Science Foundation; Alexander von Humboldt-Stiftung; TRIUMF; Compute Canada; Max-Planck-Gesellschaft; Royal Society; Danmarks Grundforskningsfond; British Columbia Knowledge Development Fund; Türkiye Enerji, Nükleer ve Maden Araştırma Kurumu; Agencia Nacional de Investigación y Desarrollo; Generalitat de Catalunya; Canarie; Deutsche Forschungsgemeinschaft; Centres de Recerca de Catalunya; CERN; Leverhulme Trust; Ministerio de Ciencia e Innovación; European Commission","keywords":"Physics; Particle physics; Lepton; Top quark; Muon; Standard Model (mathematical formulation); Pair production; Higgs boson; Large Hadron Collider; Nuclear physics; Quark; Electron","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.001196955,0.0002491569,0.0002554405,0.00002608878,0.0006102351,0.0001322601,0.0005416871,0.000009206738,0.000003752678],"category_scores_gemma":[0.00002475708,0.0001036994,0.000187943,0.0006900139,0.0005576169,0.0001647315,0.0001673901,0.0006861237,0.0002160975],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00002974022,"about_ca_system_score_gemma":0.00002619416,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00003558544,"about_ca_topic_score_gemma":0.000001982486,"domain_scores_codex":[0.9971712,0.001348175,0.000334633,0.0002222256,0.0004999753,0.0004238542],"domain_scores_gemma":[0.998857,0.0003849005,0.0003000594,0.0003023106,0.00009808942,0.00005763097],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.002553119,0.003243487,0.01133146,0.000115519,0.001229184,0.0001076545,0.1132511,0.02413036,0.4619193,0.01433008,0.01464239,0.3531463],"study_design_scores_gemma":[0.00584335,0.003676662,0.2534308,0.001067413,0.0008836773,0.00006172715,0.04340297,0.0111772,0.4490189,0.2261025,0.003694475,0.001640286],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9923125,0.0000600519,0.00009445019,0.004920171,0.000150547,0.0003187736,0.00001347904,0.00001450998,0.002115519],"genre_scores_gemma":[0.9977457,0.00002715184,0.000009748421,0.00002643462,0.001979188,0.00001432183,0.000004447621,0.0000330919,0.0001599294],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.3515061,"threshold_uncertainty_score":0.4693497,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.04001023530970664,"score_gpt":0.2683735190989546,"score_spread":0.228363283789248,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). 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