{"id":"W4315706514","doi":"10.3204/pubdb-2023-04771","title":"Search for a new scalar resonance in flavour-changing neutral-current top-quark decays $t \\rightarrow qX$ ($q=u,c$), with $X \\rightarrow b\\bar{b}$, in proton-proton collisions at $\\sqrt{s}=13$ TeV with the ATLAS detector","year":2023,"lang":"en","type":"preprint","venue":"DESY (CERN, DESY, Fermilab, IHEP, and SLAC)","topic":"Particle physics theoretical and experimental studies","field":"Physics and Astronomy","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"H2020 Marie Skłodowska-Curie Actions; Royal Society; Centre National pour la Recherche Scientifique et Technique; 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; Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung; Science and Technology Facilities Council; Ministry of Education, Culture, Sports, Science and Technology; Bundesministerium für Bildung und Forschung; Natural Sciences and Engineering Research Council of Canada; Narodowa Agencja Wymiany Akademickiej; Japan Society for the Promotion of Science; National Research Center \"Kurchatov Institute\"; British Columbia Knowledge Development Fund; Max-Planck-Gesellschaft; European Regional Development Fund; Centre National de la Recherche Scientifique; Israel Science Foundation; Joint Institute for Nuclear Research; Conselho Nacional de Desenvolvimento Científico e Tecnológico; Bundesministerium für Wissenschaft, Forschung und Wirtschaft; Generalitat de Catalunya; Generalitat Valenciana; Austrian Science Fund; Ministerstvo Školství, Mládeže a Tělovýchovy; U.S. Department of Energy; National Natural Science Foundation of China; European Commission; Leverhulme Trust; Fundação de Amparo à Pesquisa do Estado de São Paulo; Javna Agencija za Raziskovalno Dejavnost RS; Deutsche Forschungsgemeinschaft; Nederlandse Organisatie voor Wetenschappelijk Onderzoek; Agence Nationale de la Recherche; National Science Foundation; Alexander von Humboldt-Stiftung; TRIUMF; Compute Canada; Danmarks Grundforskningsfond; Türkiye Enerji, Nükleer ve Maden Araştırma Kurumu; Agencia Nacional de Investigación y Desarrollo; Services Fédéraux des Affaires Scientifiques, Techniques et Culturelles; Canarie; Centres de Recerca de Catalunya; CERN; Ministerio de Ciencia e Innovación","keywords":"Physics; Particle physics; Top quark; Large Hadron Collider; Nuclear physics; Quark; Muon; Branching fraction; Scalar (mathematics); Charm quark; Neutral current; Neutrino; Geometry","routes":{"ca_aff":false,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0003257795,0.0003836954,0.0002915145,0.0006779688,0.0003793082,0.000725531,0.0003755009,0.000469597,0.001142516],"category_scores_gemma":[0.0003130044,0.0001826208,0.0002744772,0.0006214284,0.0002078367,0.0002883867,0.000336874,0.0001467167,0.0003586269],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002551886,"about_ca_system_score_gemma":0.0002734543,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.002320531,"about_ca_topic_score_gemma":0.003142821,"domain_scores_codex":[0.9998555,0.00002821639,0.000005846742,0.00004522377,0.00003840094,0.0000268014],"domain_scores_gemma":[0.9997796,0.00008880697,0.00004579843,0.00001155875,0.00002504036,0.00004917059],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.004787561,0.0006205229,0.4686391,0.0002723187,0.0006024349,0.002889862,0.000374141,0.01002175,0.4600047,0.002653306,0.0009195554,0.04821469],"study_design_scores_gemma":[0.000232776,0.003029528,0.5726563,0.00002810396,0.0008020967,0.004203741,0.000707886,0.1152924,0.2977681,0.001979952,0.003184593,0.0001145101],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9975457,0.000122781,0.001347743,0.00002380263,0.00000251758,0.000005121521,0.0001348974,0.00005381246,0.0007637138],"genre_scores_gemma":[0.9966776,0.00006077224,0.002036229,0.00001479672,0.000004147784,0.000002134489,0.0004638377,0.00000591929,0.0007345332],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.002320531,"threshold_uncertainty_score":0.004614055,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03127879475629095,"score_gpt":0.2890099073764509,"score_spread":0.25773111262016,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). 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