{"id":"W4417268481","doi":"10.1103/24k3-r2gp","title":"Splitting isotope shift in the <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:mrow> <mml:mn>1</mml:mn> <mml:mi>s</mml:mi> <mml:mn>2</mml:mn> <mml:mi>p</mml:mi> <mml:mspace width=\"0.28em\"/> <mml:msup> <mml:mrow/> <mml:mn>3</mml:mn> </mml:msup> <mml:msub> <mml:mi>P</mml:mi> <mml:mrow> <mml:mn>0</mml:mn> <mml:mo>,</mml:mo> <mml:mn>1</mml:mn> <mml:mo>,</mml:mo> <mml:mn>2</mml:mn> </mml:mrow> </mml:msub> </mml:mrow> </mml:math> fine-structure triplet in <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:mmultiscripts> <mml:mi mathvariant=\"normal\">C</mml:mi> <mml:none/> <mml:mrow> <mml:mn>4</mml:mn> <mml:mo>+</mml:mo> </mml:mrow> <mml:mprescripts/> <mml:none/> <mml:mrow> <mml:mn>12</mml:mn> <mml:mo>,</mml:mo> <mml:mn>13</mml:mn> <mml:mo>,</mml:mo> <mml:mn>14</mml:mn> </mml:mrow> </mml:mmultiscripts> </mml:math> : Experiment and theory","year":2025,"lang":"en","type":"article","venue":"Physical review. A/Physical review, A","topic":"Nuclear physics research studies","field":"Physics and Astronomy","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Windsor","funders":"Natural Sciences and Engineering Research Council of Canada; Bundesministerium für Bildung und Forschung; Deutsche Forschungsgemeinschaft","keywords":"Isotope; Metastability; Ion; Electron; Spin (aerodynamics); Ground state; Quantum","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":[0.0008181549,0.00112093,0.0008464411,0.00147961,0.001746742,0.001679187,0.002543626,0.002370923,0.2735901],"category_scores_gemma":[0.001645023,0.000831686,0.0008984065,0.002185533,0.0005642674,0.002450072,0.001286514,0.004096407,0.08245835],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001973276,"about_ca_system_score_gemma":0.001197563,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.006533599,"about_ca_topic_score_gemma":0.01190284,"domain_scores_codex":[0.9994438,0.00003727134,0.00002341487,0.0001394107,0.0002819742,0.00007403861],"domain_scores_gemma":[0.9995224,0.00009758544,0.00003681489,0.0001417066,0.0001482088,0.00005321145],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"not_applicable","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.000573407,0.000143309,0.0007844236,0.0007282106,0.0000580772,0.0005066618,0.0004535116,0.001195161,0.1814559,0.0265689,0.7246585,0.06287397],"study_design_scores_gemma":[0.0001428635,0.0001174485,0.002624157,0.00008276635,0.00004058595,0.0003673991,0.0002285619,0.004113802,0.1419963,0.006823909,0.8433322,0.0001299419],"study_design_candidate":"bench_or_experimental","study_design_consensus":null,"genre_codex":"other","genre_gemma":"empirical","genre_scores_codex":[0.04551868,0.002474272,0.1749673,0.009574261,0.007492932,0.0004750296,0.1151561,0.04362084,0.6007206],"genre_scores_gemma":[0.1522211,0.003282949,0.126454,0.006876102,0.0005413822,0.001065441,0.1757071,0.03307484,0.5007772],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.2735901,"threshold_uncertainty_score":0.9152502,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01854669876269736,"score_gpt":0.2753715246192555,"score_spread":0.2568248258565581,"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."}}