{"id":"W2112535097","doi":"10.1103/physrevlett.87.061801","title":"Experimental Investigation of the Two-Photon Widths of the<mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mml:mrow><mml:msub><mml:mrow><mml:mi>χ</mml:mi></mml:mrow><mml:mrow><mml:mi mathvariant=\"italic\">c</mml:mi><mml:mn>0</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>and the<mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mml:mrow><mml:msub><mml:mrow><mml:mi>χ</mml:mi></mml:mrow><mml:mrow><mml:mi mathvariant=\"italic\">c</mml:mi><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>Mesons","year":2001,"lang":"lv","type":"article","venue":"Physical Review Letters","topic":"Quantum Chromodynamics and Particle Interactions","field":"Physics and Astronomy","cited_by":26,"is_retracted":false,"has_abstract":true,"ca_institutions":"Carleton University; Institute of Particle Physics","funders":"","keywords":"Physics; Pi; Particle physics; Production (economics); Electron–positron annihilation; Photon; Quantum chromodynamics; Nuclear physics; Hadron; Optics; Geometry; Mathematics","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":"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":[0.004588773,0.00251796,0.001059835,0.001083229,0.004094428,0.003684698,0.006201985,0.003592059,0.6755899],"category_scores_gemma":[0.003078379,0.004584628,0.006643562,0.003540213,0.006450264,0.003981241,0.005515326,0.004698443,0.003841178],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00005279617,"about_ca_system_score_gemma":0.003792474,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.005843117,"about_ca_topic_score_gemma":0.003017266,"domain_scores_codex":[0.9767182,0.001846067,0.005241403,0.004369283,0.006117709,0.005707376],"domain_scores_gemma":[0.9787634,0.004578638,0.006866006,0.006489524,0.000485669,0.002816747],"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":[0.002473169,0.001040126,0.00003610499,0.00308254,0.004317203,0.001622083,0.003638614,0.002536285,0.01299499,0.5801327,0.3863949,0.001731294],"study_design_scores_gemma":[0.004339613,0.002518973,0.0002370814,0.005546791,0.005304313,0.002855316,0.003360286,0.08875929,0.8754941,0.0002646926,0.007497669,0.003821909],"study_design_candidate":"bench_or_experimental","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.5325463,0.003158133,0.001030257,0.003000848,0.004586072,0.0001274575,0.001276584,0.0003325727,0.4539417],"genre_scores_gemma":[0.9707258,0.004204755,0.002171953,0.005949009,0.005258353,0.004844602,0.004098626,0.002280157,0.0004666938],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.8624991,"threshold_uncertainty_score":0.999175,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01683991781117537,"score_gpt":0.2552545070205344,"score_spread":0.2384145892093591,"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."}}