{"id":"W2924042912","doi":"10.1119/1.5089204","title":"The fortuitous chain reaction","year":2019,"lang":"en","type":"article","venue":"American Journal of Physics","topic":"Nuclear physics research studies","field":"Physics and Astronomy","cited_by":1,"is_retracted":false,"has_abstract":true,"ca_institutions":"Université de Montréal","funders":"Natural Sciences and Engineering Research Council of Canada","keywords":"Fissile material; Physics; Chain reaction; Nuclide; Nuclear physics; Spontaneous fission; Nucleosynthesis; Fission; Nuclear reaction; Neutron; Nuclear fission; Decay chain; Chain (unit); Quantum mechanics","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":[0.0002071153,0.00009241699,0.0002064719,0.00001905166,0.0001343064,0.00004502407,0.0002322295,0.000004790688,0.00001498335],"category_scores_gemma":[0.000006116169,0.00005983906,0.0001650024,0.0002090986,0.0001668306,0.0001675821,0.00005509081,0.0002740452,0.00008151477],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00003182082,"about_ca_system_score_gemma":0.00006652044,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00006281023,"about_ca_topic_score_gemma":5.039412e-7,"domain_scores_codex":[0.9991327,0.00005678307,0.0001948734,0.00007810273,0.0003174636,0.0002200666],"domain_scores_gemma":[0.9989448,0.000191653,0.0004146456,0.0001909215,0.0001969835,0.0000609486],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"design_other","study_design_gemma":"theoretical_or_conceptual","study_design_scores_codex":[0.00005811427,0.00009415392,0.009282585,0.000002888688,0.0003043863,0.000001129073,0.0004063929,0.00009570575,0.00942289,0.03800908,0.001802121,0.9405205],"study_design_scores_gemma":[0.005178809,0.007954427,0.06293666,0.000384953,0.0003557738,0.00003491086,0.0563032,0.002894121,0.03659499,0.4153834,0.4100546,0.001924163],"study_design_candidate":"design_other","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9857791,0.00004440291,0.00196642,0.0005463921,0.0003560982,0.0001207745,0.000004866465,0.000007648266,0.01117428],"genre_scores_gemma":[0.9984897,0.00002577224,0.0001187794,0.00002865532,0.000984139,0.000001859357,7.516148e-7,0.0000169826,0.0003333859],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.9385964,"threshold_uncertainty_score":0.2440166,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.007982912134705217,"score_gpt":0.2708115709960924,"score_spread":0.2628286588613872,"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."}}