{"paper":{"title":"Azimuthal anisotropy of neutral pion production in Au+Au collisions at sqrt(s_NN) = 200 GeV: Path-length dependence of jet quenching and the role of initial geometry","arxiv_id":"1006.3740","primary_cat":"nucl-ex","submitted_at":"2010-06-18T16:15:06+00:00","version_compiled":"v1"},"notice":"Every quoted sentence is the authors' text from the arXiv listing abstract. Labels and probabilities are the outputs of classifier-1.13-20260917 on the question bank abstract-p1-20260923, exactly as returned. No sentence in this record was written by a language model.","schema":"pith.compiled-record/v0","status":"compiled","abstract":{"source":"arXiv listing abstract v1","sentences":[{"i":0,"p":0.91,"id":"s0","own":true,"role":"contribution","text":"We have measured the azimuthal anisotropy of pi0's for 1 < pT < 18 GeV/c for Au+Au collisions at sqrt s_NN = 200 GeV.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.98,"main_claim_p":0.03,"quantitative":true,"quantitative_p":0.96,"role_probabilities":{"gap":0.0,"method":0.08,"result":0.01,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.91,"interpretation":0.0}},{"i":1,"p":1.0,"id":"s1","own":true,"role":"result","text":"The observed anisotropy shows a gradual decrease in 3 < pT < 7 - 10 GeV/c, but remains positive beyond 10 GeV/c.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.94,"main_claim_p":0.09,"quantitative":true,"quantitative_p":0.96,"role_probabilities":{"gap":0.0,"method":0.0,"result":1.0,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.0,"interpretation":0.0}},{"i":2,"p":0.84,"id":"s2","own":false,"role":"result","text":"The magnitude of this anisotropy is under-predicted, up to at least 10 GeV/c, by current perturbative QCD (pQCD) energy-loss model calculations.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.3,"main_claim_p":0.14,"quantitative":true,"quantitative_p":0.98,"role_probabilities":{"gap":0.05,"method":0.0,"result":0.84,"background":0.01,"limitation":0.01,"future_work":0.0,"contribution":0.0,"interpretation":0.09}},{"i":3,"p":0.5,"id":"s3","own":true,"role":"result","text":"An estimate of the increase in anisotropy expected from initial-geometry modification due to gluon saturation effects and initial-geometry fluctuations is insufficient to account for this discrepancy.","hedge":{"p":0.99,"label":"asserted"},"own_p":0.64,"main_claim_p":0.09,"quantitative":true,"quantitative_p":0.68,"role_probabilities":{"gap":0.03,"method":0.0,"result":0.5,"background":0.0,"limitation":0.03,"future_work":0.0,"contribution":0.01,"interpretation":0.43}},{"i":4,"p":0.6,"id":"s4","own":true,"role":"interpretation","text":"Calculations which implement a path length dependence steeper than what is implied by current pQCD energy-loss models, show reasonable agreement with the data.","hedge":{"p":0.98,"label":"asserted"},"own_p":0.53,"main_claim_p":0.69,"quantitative":true,"quantitative_p":0.56,"role_probabilities":{"gap":0.0,"method":0.01,"result":0.35,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.04,"interpretation":0.6}}]},"compiled":{"main_claim":{"p":1.0,"text":"Calculations which implement a path length dependence steeper than what is implied by current pQCD energy-loss models, show reasonable agreement with the data.","location":"abstract s4","hedge_strength":{"p":0.98,"label":"asserted"}},"provenance":{"route":{"via":"OpenRouter","model":"classifier-1.13","endpoint":"https://openrouter.ai/api/v1/systemone","provider":"TypeSafe"},"packing":"one request per paper","requests":1,"input_tokens":4409,"cost_usd_reported":0.000185},"compiled_at":"2026-09-23","bank_version":"abstract-p1-20260923","model_version":"classifier-1.13-20260917","abstract_states":{"claims_first":0.03,"states_limitation":0.22,"human_participants":0.02,"controlled_comparison":0.15,"randomized_assignment":0.01,"states_quantitative_result":0.86,"compares_with_prior_results":0.91,"mentions_code_or_data_availability":0.02},"evidential_basis":{"p":0.99,"value":"observation or experiment","probabilities":{"argument":0.0,"literature":0.0,"proof_or_derivation":0.0,"analysis_of_existing_data":0.01,"observation_or_experiment":0.99,"simulation_or_computation":0.0}},"contribution_type":{"p":1.0,"value":"empirical study","probabilities":{"review":0.0,"method_or_tool":0.0,"empirical_study":1.0,"simulation_study":0.0,"theoretical_result":0.0,"dataset_or_benchmark":0.0,"position_or_commentary":0.0}},"contribution_statement":{"p":0.99,"text":"We have measured the azimuthal anisotropy of pi0's for 1 < pT < 18 GeV/c for Au+Au collisions at sqrt s_NN = 200 GeV.","location":"abstract s0"}},"coverage":{"tier":"abstract","levels_run":["P abstract"],"not_examined":["full text","figures and tables","references and citing sentences","relations to other papers"],"sources_read":["arXiv listing abstract v1"],"levels_not_run":["S sections","T body sentences","C citations","R cross-paper relations"],"sentences_examined":5,"sentences_in_abstract":5},"measured_accuracy":{"url":"https://pith.science/accuracy","measured_on":"2026-10-02","method":"two independent model families labelled a fresh random sample blind; the figure is how often the published label matches their consensus","sentence_role_agreement":0.92,"main_claim_agreement":0.908,"typed_citation_agreement":0.933,"typed_citation_agreement_95_interval":[0.917,0.945],"review_comments_accurate":0.758,"review_comments_accurate_95_interval":[0.684,0.82],"review_caught_admitted_error_found_or_related":0.448}}