{"paper":{"title":"Top Quark Pair Production at Threshold: Complete Next-to-next-to-leading Order Relativistic Corrections","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A.H. Hoang (University of California, Hamburg), San Diego), T. Teubner (DESY","submitted_at":"1998-01-23T00:18:14Z","abstract_excerpt":"The complete next-to-next-to-leading order (i.e. $O(v^2)$, $O(v \\alpha_s)$ and $O(\\alpha_s^2)$) relativistic corrections to the total photon mediated $t\\bar t$ production cross section at threshold are presented in the framework of nonrelativistic quantum chromodynamics. The results are obtained using semi-analytic methods and ``direct matching''. The size of the next-to-next-to-leading order relativistic corrections is found to be comparable to the size of the next-to-leading order ones."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9801397","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"}