{"id":"W4379796920","doi":"10.1103/physrevlett.130.231801","title":"Search for an Invisible Z′ in a Final State with Two Muons and Missing Energy at Belle II","year":2023,"lang":"en","type":"article","venue":"Physical Review Letters","topic":"Particle physics theoretical and experimental studies","field":"Physics and Astronomy","cited_by":22,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"HORIZON EUROPE European Research Council; FP7 Ideas: European Research Council; Agencia Estatal de Investigación; Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional; Akademi Sains Malaysia; Japan Society for the Promotion of Science; Deutsches Elektronen-Synchrotron; Australian Research Council; Korea Research Environment Open Network; CAS Center for Excellence in Particle Physics; Kementerian Pendidikan Malaysia; Ministry of Science and Higher Education of the Russian Federation; Korea Institute of Science and Technology; Ministry of Culture and Sport; HORIZON EUROPE Marie Sklodowska-Curie Actions; National Research University Higher School of Economics; Institut National de Physique Nucléaire et de Physique des Particules; Ministry of Science and Technology, Taiwan; Univerzita Karlova v Praze; Ministry of Education and Science of Ukraine; Ministerstwo Edukacji i Nauki; Türkiye Bilimsel ve Teknolojik Araştırma Kurumu; National Research Foundation; Javna Agencija za Raziskovalno Dejavnost RS; Israel Science Foundation; National Natural Science Foundation of China; National Research Foundation of Korea; Bundesministerium für Bildung, Wissenschaft und Forschung; Deutsche Forschungsgemeinschaft; Chinese Academy of Sciences; U.S. Department of Energy; Generalitat Valenciana; Helmholtz-Gemeinschaft; Thailand Center of Excellence in Physics; Instituto Nazionale di Fisica Nucleare; United States-Israel Binational Science Foundation; Alexander von Humboldt-Stiftung; Korea Institute of Science and Technology Information; Department of Atomic Energy, Government of India; Natural Sciences and Engineering Research Council of Canada; Ministry of Education, Culture, Sports, Science and Technology; Bundesministerium für Bildung und Forschung; Ministerstvo Školství, Mládeže a Tělovýchovy; Liaoning Revitalization Talents Program; High Energy Accelerator Research Organization; Grantová Agentura České Republiky; Austrian Science Fund; Brookhaven National Laboratory; Centre National de la Recherche Scientifique; Max-Planck-Gesellschaft; National Research Foundation of Ukraine; National Institute of Informatics; Istituto Nazionale di Fisica Nucleare; Universiti Malaya; Ministry of Education; Department of Science and Technology, Ministry of Science and Technology, India; Natural Science Foundation of Shandong Province; Compute Canada; University of Tabuk; Vietnam Academy of Science and Technology; University of Victoria; National Science Foundation; Canarie; Istituto Nazionale di Fisica Nucleare Sezione di Padova","keywords":"Lepton; Physics; Particle physics; Bhabha scattering; Electron–positron annihilation; Standard Model (mathematical formulation); Luminosity; Boson; Nuclear physics; Electron; Hadron; Quantum mechanics","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":[0.0005205366,0.0004738065,0.0003740462,0.000666892,0.001068906,0.0008654597,0.0008318108,0.0007261591,0.005823398],"category_scores_gemma":[0.0006835825,0.0003962438,0.000421987,0.001292013,0.0003212245,0.0004631604,0.0005646777,0.0004760816,0.0009336215],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0006056877,"about_ca_system_score_gemma":0.0006803011,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00637666,"about_ca_topic_score_gemma":0.01565016,"domain_scores_codex":[0.9997792,0.00003210514,0.000008640323,0.00006342654,0.00003947531,0.00007727535],"domain_scores_gemma":[0.9995608,0.0001826657,0.00009703478,0.00005574306,0.0000372119,0.00006659213],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.004224709,0.001614525,0.6678137,0.0005548667,0.0003957055,0.004208375,0.001289518,0.02636906,0.1647937,0.07563098,0.01978574,0.03331912],"study_design_scores_gemma":[0.001458167,0.001879035,0.3800323,0.00008721069,0.0004097072,0.003574857,0.002136988,0.2500335,0.3047881,0.02174593,0.03359735,0.0002568437],"study_design_candidate":"bench_or_experimental","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9875342,0.00008915417,0.004115049,0.0001715153,0.000005351347,0.00003703613,0.003273509,0.0001435276,0.004630731],"genre_scores_gemma":[0.9855286,0.00007669545,0.006913316,0.00007120503,0.000003595783,0.00003345171,0.005370568,0.00005109511,0.001951321],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.00637666,"threshold_uncertainty_score":0.01948124,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02582450099600339,"score_gpt":0.2859703264961815,"score_spread":0.2601458255001782,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). 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