{"id":"W2108529563","doi":"10.1103/physrevlett.93.073401","title":"First Measurement of the Velocity of Slow Antihydrogen Atoms","year":2004,"lang":"en","type":"article","venue":"Physical Review Letters","topic":"Atomic and Molecular Physics","field":"Physics and Astronomy","cited_by":68,"is_retracted":false,"has_abstract":true,"ca_institutions":"York University","funders":"","keywords":"Antihydrogen; Antiproton; Physics; Atomic physics; Thermal; Electric field; Spectroscopy; Bound state; Field (mathematics); Nuclear physics; Antimatter; Proton; Electron; Positron; Quantum mechanics; Thermodynamics","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":[0.0002723677,0.0003050065,0.0002894783,0.0006873047,0.0004867047,0.0005114829,0.0005666839,0.0008628219,0.001687713],"category_scores_gemma":[0.001058598,0.0002997166,0.0001201364,0.0003358209,0.0004764328,0.0005405711,0.0005751092,0.001116063,0.0005960304],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002823558,"about_ca_system_score_gemma":0.000189875,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0004625339,"about_ca_topic_score_gemma":0.0005883182,"domain_scores_codex":[0.9997496,0.0000315823,0.000006715934,0.00008926178,0.0000779269,0.0000449194],"domain_scores_gemma":[0.9992926,0.0001876674,0.0001073754,0.0001194287,0.0001958054,0.00009704372],"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":[0.0002723641,0.00003585419,0.005578934,0.00008115885,0.00003063693,0.00009859615,0.0001705678,0.0001947139,0.9696267,0.004034047,0.001657935,0.01821849],"study_design_scores_gemma":[0.00004600501,0.0005731425,0.01892412,0.00002768424,0.00003803423,0.0007812626,0.0001414245,0.007504095,0.9434739,0.001910766,0.02651399,0.00006556851],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9024049,0.003591251,0.07728957,0.0007967633,0.0006192701,0.0001030305,0.001326149,0.0009567955,0.01291226],"genre_scores_gemma":[0.954417,0.0008572305,0.03737688,0.0001460412,0.0001260982,0.00007031585,0.0005599461,0.00008820988,0.006358339],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.001687713,"threshold_uncertainty_score":0.005645931,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01450022672883296,"score_gpt":0.2450916065307981,"score_spread":0.2305913798019651,"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."}}