{"paper":{"title":"An improved observable for the forward-backward asymmetry in B -> K* l+ l- and Bs -> phi l+ l-","arxiv_id":"1007.4015","primary_cat":"hep-ph","submitted_at":"2010-07-22T21:48:15+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. 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moreover it displays a very strong dependence on the phase of the Wilson coefficient C_10 that is otherwise only accessible through complicated CP violating asymmetries.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.62,"main_claim_p":0.25,"quantitative":true,"quantitative_p":0.87,"role_probabilities":{"gap":0.0,"method":0.0,"result":0.05,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.02,"interpretation":0.93}},{"i":3,"p":0.74,"id":"s3","own":true,"role":"contribution","text":"We illustrate the new physics sensitivity of this observable within the context of few extensions of the Standard Model, namely the SM with four generations, an MSSM with non--vanishing source of flavor changing neutral currents in the down squark sector and a Z' model with tree level flavor changing couplings.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.79,"main_claim_p":0.09,"quantitative":false,"quantitative_p":0.3,"role_probabilities":{"gap":0.0,"method":0.11,"result":0.12,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.74,"interpretation":0.03}}]},"compiled":{"main_claim":{"p":0.78,"text":"We study the decay B -> K* l+ l- in the QCD factorization approach and propose a new integrated observable whose dependence on the form factors is almost negligible, consequently the non--perturbative error is significantly reduced and indeed its overall theoretical error is dominated by perturbative scale uncertainties.","location":"abstract s0","hedge_strength":{"p":1.0,"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":3925,"cost_usd_reported":0.000165},"compiled_at":"2026-09-23","bank_version":"abstract-p1-20260923","model_version":"classifier-1.13-20260917","abstract_states":{"claims_first":0.05,"states_limitation":0.66,"human_participants":0.01,"controlled_comparison":0.08,"randomized_assignment":0.01,"states_quantitative_result":0.13,"compares_with_prior_results":0.83,"mentions_code_or_data_availability":0.02},"evidential_basis":{"p":0.5,"value":"simulation or computation","probabilities":{"argument":0.11,"literature":0.0,"proof_or_derivation":0.39,"analysis_of_existing_data":0.0,"observation_or_experiment":0.0,"simulation_or_computation":0.5}},"contribution_type":{"p":0.63,"value":"method or tool","probabilities":{"review":0.0,"method_or_tool":0.63,"empirical_study":0.0,"simulation_study":0.0,"theoretical_result":0.37,"dataset_or_benchmark":0.0,"position_or_commentary":0.0}},"contribution_statement":{"p":0.81,"text":"We study the decay B -> K* l+ l- in the QCD factorization approach and propose a new integrated observable whose dependence on the form factors is almost negligible, consequently the non--perturbative error is significantly reduced and indeed its overall theoretical error is dominated by perturbative scale uncertainties.","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":4,"sentences_in_abstract":4},"measured_accuracy":{"url":"https://pith.science/accuracy","measured_on":"2026-10-02","method":"two independent model families labelled a fresh random sample blind; 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