{"id":"W4412531609","doi":"10.1103/2tdc-5by6","title":"Measurement of spin-density matrix elements in <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:mrow> <mml:mi>ϕ</mml:mi> <mml:mrow> <mml:mo>(</mml:mo> <mml:mn>1020</mml:mn> <mml:mo>)</mml:mo> </mml:mrow> <mml:mo>→</mml:mo> <mml:msubsup> <mml:mi>K</mml:mi> <mml:mi>S</mml:mi> <mml:mn>0</mml:mn> </mml:msubsup> <mml:msubsup> <mml:mi>K</mml:mi> <mml:mi>L</mml:mi> <mml:mn>0</mml:mn> </mml:msubsup> </mml:mrow> </mml:math> photoproduction with a linearly polarized photon beam at <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:mrow> <mml:msub> <mml:mi>E</mml:mi> <mml:mi>γ</mml:mi> </mml:msub> <mml:mo>=</mml:mo> <mml:mn>8.2</mml:mn> <mml:mo>–</mml:mo> <mml:mn>8.8</mml:mn> <mml:mo> </mml:mo> <mml:mi>GeV</mml:mi> </mml:mrow> </mml:math>","year":2025,"lang":"lv","type":"article","venue":"Physical review. C","topic":"X-ray Spectroscopy and Fluorescence Analysis","field":"Physics and Astronomy","cited_by":1,"is_retracted":false,"has_abstract":true,"ca_institutions":"Institute of Particle Physics; Mount Allison University; Toronto Metropolitan University","funders":"Science and Technology Facilities Council; Natural Sciences and Engineering Research Council of Canada; Russian Foundation for Basic Research; National Natural Science Foundation of China; National Energy Research Scientific Computing Center; Deutsche Forschungsgemeinschaft; U.S. Department of Energy; National Science Foundation","keywords":"Prefix; Matrix (chemical analysis); Computer science; Materials science; Philosophy; Linguistics","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":[0.0004621782,0.0003196595,0.0002004166,0.0006831572,0.0008496159,0.0008286348,0.0006790503,0.0006731985,0.01802457],"category_scores_gemma":[0.0006896148,0.0003767413,0.0002200075,0.0007242899,0.000510336,0.0008026475,0.0005403793,0.0009877279,0.002406177],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0008079954,"about_ca_system_score_gemma":0.0004147289,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.002724144,"about_ca_topic_score_gemma":0.00548456,"domain_scores_codex":[0.9997141,0.00004595446,0.000007136593,0.00008155349,0.00008241542,0.00006879358],"domain_scores_gemma":[0.9996248,0.000124181,0.00006764289,0.00007949405,0.00005858137,0.00004518579],"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":[0.0009159972,0.0002669368,0.009178542,0.0001876012,0.00008664501,0.0005056425,0.0004054306,0.0013129,0.939526,0.02460504,0.00641068,0.01659852],"study_design_scores_gemma":[0.00005340519,0.0001910477,0.01875483,0.00002531168,0.00003523383,0.0002085204,0.0003118749,0.006400271,0.9621273,0.003317354,0.008527833,0.00004697985],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.858505,0.0005876337,0.04769311,0.0009609623,0.0002252953,0.0001247012,0.00562499,0.001028349,0.08525009],"genre_scores_gemma":[0.9644595,0.0003514554,0.0119224,0.000202134,0.0000153707,0.00007332169,0.00194521,0.0001993847,0.02083116],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.01802457,"threshold_uncertainty_score":0.06029814,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01598003519056828,"score_gpt":0.2576484985504232,"score_spread":0.2416684633598549,"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."}}