{"paper":{"title":"Large NLO corrections in $t\\bar{t}W^{\\pm}$ and $t\\bar{t}t\\bar{t}$ hadroproduction from supposedly subleading EW contributions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Davide Pagani, Marco Zaro, Rikkert Frederix","submitted_at":"2017-11-06T19:11:23Z","abstract_excerpt":"We calculate the complete-NLO predictions for $t\\bar{t}W^{\\pm}$ and $t\\bar{t}t\\bar{t}$ production in proton--proton collisions at 13 and 100 TeV. All the non-vanishing contributions of $\\mathcal{O}(\\alpha_s^i \\alpha^j)$ with $i+j=3,4$ for $t\\bar{t}W^{\\pm}$ and $i+j=4,5$ for $t\\bar{t}t\\bar{t}$ are evaluated without any approximation. For $t\\bar{t}W^{\\pm}$ we find that, due to the presence of $tW \\to tW$ scattering, at 13(100) TeV the $\\mathcal{O}(\\alpha_s \\alpha^3)$ contribution is about 12(70)\\% of the LO, i.e., it is larger than the so-called NLO EW corrections (the $\\mathcal{O}(\\alpha_s^2 \\a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.02116","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"}