{"id":"W238954547","doi":"10.1103/physrevlett.86.3233","title":"First Measurement of the Ratio<mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mml:mi mathvariant=\"italic\">B</mml:mi><mml:mo>(</mml:mo><mml:mi mathvariant=\"italic\">t</mml:mi><mml:mi/><mml:mo>→</mml:mo><mml:mi/><mml:mi mathvariant=\"italic\">Wb</mml:mi><mml:mo>)</mml:mo><mml:mi>/</mml:mi><mml:mi mathvariant=\"italic\">B</mml:mi><mml:mo>(</mml:mo><mml:mi mathvariant=\"italic\">t</mml:mi><mml:mi/><mml:mo>→</mml:mo><mml:mi/><mml:mi mathvariant=\"italic\">Wq</mml:mi><mml:mo>)</mml:mo></mml:math>and Associated Limit on the Cabibbo-Kobayashi-Maskawa Element<mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mml:mi>|</mml:mi><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant=\"italic\">V</mml:mi></mml:mrow><mml:mrow><mml:mi mathvariant=\"italic\">tb</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mi>|</mml:mi></mml:math>","year":2001,"lang":"lv","type":"article","venue":"Physical Review Letters","topic":"Particle physics theoretical and experimental studies","field":"Physics and Astronomy","cited_by":35,"is_retracted":false,"has_abstract":true,"ca_institutions":"McGill University; Institute of Particle Physics; University of Toronto","funders":"National Science Council; Natural Sciences and Engineering Research Council of Canada; Istituto Nazionale di Fisica Nucleare; Alfred P. Sloan Foundation; Fermilab; U.S. Department of Energy; National Science Foundation","keywords":"Physics; Tevatron; Collider Detector at Fermilab; Particle physics; Branching fraction; Fermilab; Nuclear physics; Large Hadron Collider","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":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.001039979,0.001007935,0.0008450465,0.002119339,0.002270012,0.002060634,0.001932872,0.00268702,0.03993299],"category_scores_gemma":[0.003014991,0.0006265243,0.0005541571,0.001082956,0.001350094,0.001724325,0.001878932,0.003599655,0.005861756],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00156947,"about_ca_system_score_gemma":0.0006000924,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001617988,"about_ca_topic_score_gemma":0.002368995,"domain_scores_codex":[0.9989274,0.0001276084,0.00002504604,0.0002874038,0.0003390234,0.0002935535],"domain_scores_gemma":[0.9986216,0.0002656583,0.0001922626,0.000363846,0.0003108658,0.0002458862],"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":[0.00229259,0.0007028347,0.009133895,0.001377207,0.00020797,0.001564444,0.002951331,0.00118945,0.5639232,0.2574149,0.105441,0.05380117],"study_design_scores_gemma":[0.0001690126,0.0009332476,0.02854303,0.0003281554,0.0001441403,0.001468993,0.001554332,0.01020678,0.7697129,0.039393,0.1472754,0.0002710557],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"other","genre_gemma":"empirical","genre_scores_codex":[0.4304031,0.003674399,0.1091836,0.005529789,0.003186182,0.0002287766,0.004939585,0.008513202,0.4343413],"genre_scores_gemma":[0.9405484,0.0004710417,0.02056287,0.0006774056,0.0001671202,0.0001822874,0.001420613,0.001334333,0.03463596],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.03993299,"threshold_uncertainty_score":0.1335892,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02018936385630931,"score_gpt":0.2444530652019793,"score_spread":0.22426370134567,"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."}}