{"paper":{"title":"Two-Loop ${\\cal O}(\\alpha_sG_Fm_t^2)$ Corrections to Higgs Production at LEP","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Bernd A. Kniehl, Michael Spira","submitted_at":"1995-01-27T15:45:15Z","abstract_excerpt":"We evaluate the two-loop ${\\cal O}(\\alpha_sG_Fm_t^2)$ correction to the $ZZH$ coupling in the Standard Model by means of a low-energy theorem, assuming that the top quark is much heavier than the Higgs boson. We then construct a heavy-top-quark effective Lagrangian for the $ZZH$ interaction that accommodates the ${\\cal O}(G_Fm_t^2)$ and ${\\cal O}(\\alpha_sG_Fm_t^2)$ corrections and derive from it the corresponding corrections to the $H\\to ZZ$ decay as well as those to Higgs-boson production at LEP1, via $Z\\to f\\bar fH$, and at LEP2, via $e^+e^-\\to ZH$. In all cases, the leading ${\\cal O}(G_Fm_t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9501392","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"}