{"paper":{"title":"Measurement of the fraction of top quark pair events produced via gluon-gluon fusion at the Tevatron in lepton+jets final states","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"JaeHoon Lim, Sehwook Lee, Sungwoong Cho, SungWoo Youn, Suyong Choi","submitted_at":"2014-11-30T15:20:55Z","abstract_excerpt":"We report a measurement of the fraction of top quark pair events produced via gluon-gluon fusion in $p\\bar{p}$ collisions at $\\sqrt{s} = 1.96 ~\\rm TeV$ in lepton+jets final states using the full RunII data set corresponding to $9.7 ~\\rm fb^{-1}$ of integrated luminosity collected by the D\\O\\ experiment. We utilize a boosted decision tree to distinguish top quark pair events produced by $q\\bar{q}$ annihilation and $gg$ fusion. We perform a template fit to extract the $t\\bar{t}$ production fraction via $gg$ fusion and find $f_{gg} = 0.096 \\pm 0.039 ~(\\rm stat.) ~^{+0.077}_{-0.062} ~(\\rm syst.)$."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.0227","kind":"arxiv","version":1},"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"}