{"paper":{"title":"Model independent analysis of the forward-backward asymmetry of top quark production at the Tevatron","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Dong-Won Jung, Jae Sik Lee, P. Ko, Soo-Hyeon Nam","submitted_at":"2009-12-07T12:01:27Z","abstract_excerpt":"Motivated by a possible anomaly in the forward-backward (FB) asymmetry of top quark (A_{\\rm FB}) observed at the Tevatron, we perform a model independent analysis on q \\bar{q} \\to t \\bar{t} using an effective lagrangian with dim-6 four-quark operators. We derive necessary conditions on new physics structures and the couplings that are consistent with the t\\bar{t} production cross section and A_{\\rm FB} measured at the Tevatron, and discuss possible new physics scenarios that could generate such dim-6 operators."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.1105","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}