{"id":"W2149954779","doi":"10.1103/physrevlett.102.242001","title":"Observation of Exclusive Charmonium Production and<mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mml:mi>γ</mml:mi><mml:mi>γ</mml:mi><mml:mo>→</mml:mo><mml:msup><mml:mi>μ</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:msup><mml:mi>μ</mml:mi><mml:mo>−</mml:mo></mml:msup></mml:math>in<mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mml:mi>p</mml:mi><mml:mover accent=\"true\"><mml:mi>p</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math>Collisions at<mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>1.96</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>TeV</mml:mi></mml:math>","year":2009,"lang":"lv","type":"article","venue":"Physical Review Letters","topic":"Particle physics theoretical and experimental studies","field":"Physics and Astronomy","cited_by":172,"is_retracted":false,"has_abstract":true,"ca_institutions":"McGill University; Institute of Particle Physics; Simon Fraser University; University of Alberta; University of Toronto; TRIUMF","funders":"Fermilab; Science and Technology Facilities Council; Istituto Nazionale di Fisica Nucleare; Centre National de la Recherche Scientifique; Bundesministerium für Bildung und Forschung; Ministerio de Ciencia e Innovación; Natural Sciences and Engineering Research Council of Canada; National Science Council; Alfred P. Sloan Foundation; U.S. Department of Energy; Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung; Russian Foundation for Basic Research; Ministry of Education, Culture, Sports, Science and Technology; National Science Foundation","keywords":"Physics; Production (economics); Muon; Hadron; Particle physics; Nuclear physics","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":["metaepi_narrow","metaepi_broad","sts","scholarly_communication","open_science","research_integrity","insufficient_payload"],"consensus_categories":["metaepi_narrow","sts","open_science","research_integrity","insufficient_payload"],"category_scores_codex":[0.00720581,0.006435331,0.003117835,0.002435429,0.00958619,0.006607957,0.01039292,0.008170091,0.02936098],"category_scores_gemma":[0.005850764,0.01080834,0.01113366,0.006773918,0.009549976,0.008223013,0.01118671,0.009894731,0.01090247],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002760916,"about_ca_system_score_gemma":0.005322998,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.005936921,"about_ca_topic_score_gemma":0.002051912,"domain_scores_codex":[0.9533715,0.002731525,0.01038608,0.01023726,0.01149026,0.01178335],"domain_scores_gemma":[0.9651219,0.006590261,0.01146254,0.009444457,0.001383444,0.005997444],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.00731299,0.003701355,0.00008264963,0.006084358,0.00822027,0.003772912,0.005564828,0.005934469,0.01578332,0.8268577,0.1099499,0.006735235],"study_design_scores_gemma":[0.009700289,0.007828092,0.0002582617,0.009716636,0.01137254,0.004988388,0.00650263,0.1843275,0.7280408,0.008153048,0.0183191,0.01079279],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9209476,0.008398831,0.00228513,0.004692226,0.009145603,0.0006696723,0.003819109,0.001590424,0.04845147],"genre_scores_gemma":[0.9425136,0.01125793,0.00460107,0.007405722,0.01125599,0.009280709,0.00881026,0.004391024,0.0004836391],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.8187047,"threshold_uncertainty_score":0.9987696,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02017309423563774,"score_gpt":0.2592623295968297,"score_spread":0.239089235361192,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}