{"paper":{"title":"$t\\bar{t}b\\bar{b}$ at the LHC: On the size of off-shell effects and prompt $b$-jet identification","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Giuseppe Bevilacqua, Heribertus Bayu Hartanto, Huan-Yu Bi, Malgorzata Worek, Manfred Kraus, Michele Lupattelli","submitted_at":"2022-02-22T21:42:32Z","abstract_excerpt":"We investigate full off-shell effects in $t\\bar{t}b\\bar{b}$ production in the dilepton channel at the LHC with the center-of-mass energy $\\sqrt{s} = 13$ TeV. Specifically, we compute NLO QCD corrections to the $pp \\to e^+ \\nu_e \\mu^- \\bar{\\nu}_\\mu b \\bar{b} b \\bar{b} + X$ process and provide a prescription for $b$-jet identification to distinguish prompt $b$ jets from $b$ jets originating from the decay of the top quarks. As an important irreducible background to $pp \\to t\\bar{t}H (H\\to b\\bar{b})$, $t\\bar{t}$ production in association with two prompt $b$ jets is a primary source of uncertainty"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.11186","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2202.11186/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}