{"paper":{"title":"Precise predictions for $t\\bar{t}\\gamma/t\\bar{t}$ cross section ratios at the LHC","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"G. Bevilacqua, H. B. Hartanto, M. Kraus, M. Worek, T. Weber","submitted_at":"2018-09-23T09:32:35Z","abstract_excerpt":"With the goal of increasing the precision of NLO QCD predictions for the $pp\\to t\\bar{t} \\gamma$ process in the di-lepton top quark decay channel we present theoretical predictions for the ${\\cal R}= \\sigma_{t\\bar{t}\\gamma}/\\sigma_{t\\bar{t}}$ cross section ratio. Results for the latter together with various differential cross section ratios are given for the LHC with the Run II energy of $\\sqrt{s} = 13$ TeV. Fully realistic NLO computations for $t\\bar{t}$ and $t\\bar{t}\\gamma$ production are employed. They are based on matrix elements for $e^+\\nu_e \\mu^- \\bar{\\nu}_\\mu b\\bar{b}$ and $e^+\\nu_e \\m"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.08562","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"}