{"id":"W1659362036","doi":"10.1063/1.1328911","title":"Progress and puzzles in positronium physics","year":2000,"lang":"en","type":"article","venue":"AIP conference proceedings","topic":"Atomic and Molecular Physics","field":"Physics and Astronomy","cited_by":2,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Alberta","funders":"","keywords":"Positronium; Physics; Recoil; Atomic physics; Hyperfine structure; Radiative transfer; Atom (system on chip); Nuclear physics; Energy (signal processing); Positron; Quantum mechanics; Electron","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":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.00004244635,0.0001464514,0.0001565966,0.00001807794,0.0000572454,0.00009509116,0.0001178729,0.0000312418,0.0001613451],"category_scores_gemma":[6.542028e-7,0.0001428564,0.00003122054,0.0001122704,0.0001055402,0.00023063,0.00003815345,0.0001477331,0.00003098744],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00001148981,"about_ca_system_score_gemma":0.00004794913,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0000543954,"about_ca_topic_score_gemma":7.556615e-7,"domain_scores_codex":[0.9992707,0.000003880328,0.000124727,0.0002485522,0.0000946877,0.0002574028],"domain_scores_gemma":[0.9997736,0.000005167244,0.00004113133,0.0000600874,0.00005584862,0.00006422406],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"theoretical_or_conceptual","study_design_scores_codex":[0.00002300967,0.0001334769,0.5606988,0.00002272781,0.00002710078,0.000001133231,0.002035473,7.020612e-7,0.002282668,0.1757463,0.0001850662,0.2588435],"study_design_scores_gemma":[0.006573193,0.000472927,0.2439985,0.0007364916,0.0002237522,0.00001626265,0.007323048,0.04739386,0.0421747,0.6238058,0.02390195,0.003379629],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9663237,0.00005306073,0.001483917,0.0002452594,0.00001461942,0.000173618,0.000004640026,0.00003056599,0.03167062],"genre_scores_gemma":[0.9988949,0.00001031433,0.0003367988,0.0000503496,0.000123944,0.00003810116,0.00000783937,0.00001469751,0.0005230886],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.4480595,"threshold_uncertainty_score":0.5825515,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.00877699803963977,"score_gpt":0.2301425562360216,"score_spread":0.2213655581963818,"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."}}