{"id":"W4392950771","doi":"10.1103/physrevlett.132.121902","title":"First Measurement Using Elliptically Polarized Photons of the Double-Polarization Observable <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mml:mi>E</mml:mi></mml:math> for <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mml:mrow><mml:mi>γ</mml:mi><mml:mi>p</mml:mi><mml:mo stretchy=\"false\">→</mml:mo><mml:mi>p</mml:mi><mml:msup><mml:mrow><mml:mi>π</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math> and <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mml:mrow><mml:mi>γ</mml:mi><mml:mi>p</mml:mi><mml:mo stretchy=\"false\">→</mml:mo><mml:mi>n</mml:mi><mml:msup><mml:mrow><mml:mi>π</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>","year":2024,"lang":"en","type":"article","venue":"Physical Review Letters","topic":"Quantum Chromodynamics and Particle Interactions","field":"Physics and Astronomy","cited_by":3,"is_retracted":false,"has_abstract":true,"ca_institutions":"Mount Allison University; Saint Mary's University; University of Regina","funders":"Nuclear Physics; Instituto Nazionale di Fisica Nucleare; Science and Technology Facilities Council; Natural Sciences and Engineering Research Council of Canada; Deutsche Forschungsgemeinschaft; Seventh Framework Programme; Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung; U.S. Department of Energy; Office of Science; National Science Foundation","keywords":"Physics; Elliptical polarization; Observable; Polarization (electrochemistry); Circular polarization; Photon; Asymmetry; Helicity; Photon polarization; Linear polarization; Particle physics; Atomic physics; Optics; Quantum mechanics; Laser","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":"codex-gemma-dda1882f352a","candidate_categories":["metaepi_narrow","sts","scholarly_communication","open_science","research_integrity","insufficient_payload"],"consensus_categories":["metaepi_narrow","sts","research_integrity","insufficient_payload"],"category_scores_codex":[0.006806492,0.004077165,0.001676993,0.002064856,0.006720023,0.007020166,0.008605565,0.006788771,0.3338067],"category_scores_gemma":[0.005421539,0.007710496,0.009215025,0.005116977,0.006623623,0.006341271,0.007675888,0.007472297,0.005782074],"about_ca_system_candidate":true,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001175607,"about_ca_system_score_gemma":0.00649966,"about_ca_topic_candidate":true,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.007856945,"about_ca_topic_score_gemma":0.004980169,"domain_scores_codex":[0.9645393,0.002025238,0.007752215,0.007161513,0.009468087,0.009053606],"domain_scores_gemma":[0.9714383,0.006406268,0.008413651,0.008058134,0.001025797,0.004657884],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.004658835,0.001700788,0.00004588554,0.006051371,0.007528524,0.003035471,0.003379926,0.006515984,0.01128437,0.7068638,0.2459946,0.002940372],"study_design_scores_gemma":[0.006217605,0.00440467,0.0001282509,0.007162279,0.008727623,0.004089326,0.003799056,0.1636906,0.7827649,0.001224958,0.01148072,0.006310036],"study_design_candidate":"bench_or_experimental","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.7172565,0.0050796,0.003843875,0.003423188,0.00824383,0.0002968579,0.002962345,0.001086182,0.2578076],"genre_scores_gemma":[0.9561291,0.005310136,0.005725801,0.005233026,0.007729942,0.007723403,0.007669739,0.004071371,0.0004075063],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.7714806,"threshold_uncertainty_score":0.9991326,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02413183752180195,"score_gpt":0.259186085799939,"score_spread":0.2350542482781371,"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."}}