{"id":"W2987905983","doi":"10.1103/physrevc.100.055202","title":"Measurement of neutral pion photoproduction off the proton with the large acceptance electromagnetic calorimeter BGOegg","year":2019,"lang":"en","type":"article","venue":"Physical review. C","topic":"Quantum Chromodynamics and Particle Interactions","field":"Physics and Astronomy","cited_by":16,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Saskatchewan","funders":"Japan Society for the Promotion of Science; Ministry of Science and Technology, Taiwan; Ministry of Education, Culture, Sports, Science and Technology","keywords":"Physics; Pion; Nuclear physics; Proton; Multipole expansion; Beam (structure); Particle physics; Partial wave analysis; Photon; Asymmetry; Range (aeronautics); Atomic physics; Photon energy; Energy (signal processing); Polar; Optics; Quantum mechanics","routes":{"ca_aff":true,"ca_fund":false,"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":[0.000746163,0.0003978363,0.0003141288,0.0007550623,0.0004108431,0.0006330837,0.0005140486,0.0004364005,0.00107681],"category_scores_gemma":[0.0007398306,0.0002721855,0.0001464595,0.0009540434,0.0005161232,0.0003498414,0.0008326327,0.0005168535,0.0002766607],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0009554779,"about_ca_system_score_gemma":0.0005613519,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.004408292,"about_ca_topic_score_gemma":0.005386535,"domain_scores_codex":[0.999253,0.0001824245,0.00001426462,0.0001298943,0.0002461252,0.0001742618],"domain_scores_gemma":[0.9996805,0.0001017505,0.00005925294,0.00005705325,0.00004552405,0.00005591517],"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":[0.005648993,0.0004517494,0.06335916,0.0001651715,0.0002194197,0.0006479169,0.000447857,0.01470225,0.8721841,0.01112369,0.001855907,0.02919374],"study_design_scores_gemma":[0.000297547,0.001011485,0.1189657,0.00002711868,0.0001296351,0.0004067331,0.0001261192,0.02618745,0.838315,0.001737899,0.0126741,0.0001213297],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9874741,0.0001619377,0.005569515,0.000109968,0.0000105352,0.00002101944,0.0007496321,0.0003331668,0.005570254],"genre_scores_gemma":[0.9922826,0.00008376248,0.005888969,0.00003944904,0.000004549596,0.00002354033,0.0007402098,0.00004777224,0.0008893498],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.004408292,"threshold_uncertainty_score":0.00876528,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.009263559981752259,"score_gpt":0.2807775868781279,"score_spread":0.2715140268963756,"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."}}