{"id":"W2039862269","doi":"10.1103/physrevlett.108.052504","title":"First Direct Mass Measurement of the Two-Neutron Halo Nucleus<mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mml:mmultiscripts><mml:mi>He</mml:mi><mml:mprescripts/><mml:none/><mml:mn>6</mml:mn></mml:mmultiscripts></mml:math>and Improved Mass for the Four-Neutron Halo<mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mml:mmultiscripts><mml:mi>He</mml:mi><mml:mprescripts/><mml:none/><mml:mn>8</mml:mn></mml:mmultiscripts></mml:math>","year":2012,"lang":"lv","type":"article","venue":"Physical Review Letters","topic":"Nuclear physics research studies","field":"Physics and Astronomy","cited_by":107,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Windsor; McGill University; University of British Columbia; TRIUMF","funders":"","keywords":"Physics; Neutron; Halo; Nucleon; Charge radius; Atomic physics; Nuclear physics; Proton; Astrophysics","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":[0.0008566415,0.0007573434,0.0005007574,0.0008052245,0.0007604126,0.0004911368,0.001153938,0.001025777,0.00698805],"category_scores_gemma":[0.0008968449,0.0004181973,0.0004326069,0.0006830723,0.0005470865,0.0006401019,0.001318782,0.001050497,0.002147822],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001110583,"about_ca_system_score_gemma":0.0006684325,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.003670559,"about_ca_topic_score_gemma":0.01111411,"domain_scores_codex":[0.9993105,0.00007800276,0.00002374389,0.000158482,0.0003516572,0.00007761416],"domain_scores_gemma":[0.9995059,0.00006521908,0.00006729404,0.0001073158,0.0002061782,0.00004808664],"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":[0.0007001226,0.0001433739,0.00987559,0.0004673263,0.0002019064,0.0007425934,0.0003637088,0.000614032,0.9337018,0.005244969,0.01186218,0.03608249],"study_design_scores_gemma":[0.00008852017,0.0004481598,0.01958114,0.0000304448,0.00009399998,0.0005659401,0.00008518203,0.002170869,0.9323621,0.0005412298,0.04397744,0.00005497925],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.7769332,0.005535191,0.1436248,0.001588999,0.0008907866,0.0005607046,0.0108396,0.00247087,0.05755582],"genre_scores_gemma":[0.8067994,0.002966832,0.1314086,0.0006371546,0.0001974434,0.0003312032,0.008613429,0.0007139935,0.04833195],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.00698805,"threshold_uncertainty_score":0.02337736,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03009623101025673,"score_gpt":0.2643806008398307,"score_spread":0.2342843698295739,"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."}}