{"paper":{"title":"Coulomb resummation for $b \\bar b$ system near threshold and precision determination of $\\al_s$ and $m_b$.","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A.A.Penin, A.A.Pivovarov, J.H.K\\\"uhn","submitted_at":"1998-01-20T11:06:55Z","abstract_excerpt":"We analyze sum rules for the $\\Upsilon$ system with resummation of threshold effects on the basis of the nonrelativistic Coulomb approximation. We find for the pole mass of the bottom quark $m_b=4.75\\pm 0.04 GeV$ and for the strong coupling constant $\\al_s(M_Z)=0.118\\pm 0.006$. The origin of the contradiction between two recent estimates obtained within the same formal framework is clarified."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9801356","kind":"arxiv","version":4},"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"}