{"id":"W3206685233","doi":"10.1038/s41467-021-26086-1","title":"Sympathetic cooling of positrons to cryogenic temperatures for antihydrogen production","year":2021,"lang":"en","type":"article","venue":"Nature Communications","topic":"Muon and positron interactions and applications","field":"Engineering","cited_by":40,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of British Columbia; Simon Fraser University; University of Calgary; York University; TRIUMF","funders":"Engineering and Physical Sciences Research Council; Natural Sciences and Engineering Research Council of Canada; U.S. Department of Energy; Carlsbergfondet; National Science Foundation; TRIUMF; Israel Science Foundation; Canadian Network for Research and Innovation in Machining Technology, Natural Sciences and Engineering Research Council of Canada; Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro; Conselho Nacional de Desenvolvimento Científico e Tecnológico; Research Councils UK; Science and Technology Facilities Council; Fonds Québécois de la Recherche sur la Nature et les Technologies","keywords":"Antihydrogen; Nuclear physics; Physics; Production (economics); Positron; Antimatter; Electron","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":[0.0004677962,0.0002231394,0.0003243944,0.000143992,0.0004551647,0.0005030274,0.0004207254,0.0002815499,0.00246477],"category_scores_gemma":[0.0006152508,0.0001681376,0.0001563263,0.0001645811,0.0005943704,0.000547073,0.0008172149,0.0007102963,0.0004213752],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002784358,"about_ca_system_score_gemma":0.0003298381,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0003212411,"about_ca_topic_score_gemma":0.0005352456,"domain_scores_codex":[0.9997894,0.00003164494,0.00001044067,0.00005315738,0.00006945987,0.00004581456],"domain_scores_gemma":[0.9997008,0.00009994661,0.0000714109,0.0000471928,0.00005237155,0.00002842665],"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":[0.0002479663,0.00003822955,0.000939718,0.00008050764,0.00001539778,0.00007687472,0.0002269063,0.0004321962,0.99368,0.001720008,0.0002995432,0.002242708],"study_design_scores_gemma":[0.00002655592,0.0002505781,0.0008627481,0.00001288232,0.000006988445,0.00006227623,0.00009187852,0.003405687,0.9922754,0.0002736684,0.002717958,0.0000133],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9817019,0.0005641335,0.01216988,0.0002457855,0.000115304,0.00007764182,0.0002136408,0.00007947864,0.004832301],"genre_scores_gemma":[0.9948436,0.0002549034,0.003269757,0.00005510913,0.00002090418,0.00005203833,0.0001007456,0.00005851908,0.001344523],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.00246477,"threshold_uncertainty_score":0.008245468,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01249246059484183,"score_gpt":0.292576041226108,"score_spread":0.2800835806312662,"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."}}