{"paper":{"title":"$\\Upsilon(nS)$ and $\\chi_b(nP)$ production at hadron colliders in nonrelativistic QCD","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"C. Meng, H. Han, H.S. Shao, K.T. Chao, Y.J. Zhang, Y.Q. Ma","submitted_at":"2014-10-30T20:04:58Z","abstract_excerpt":"$\\Upsilon(nS)$ and $\\chi_b(nP)$ (n=1,2,3) production at the LHC is studied at next-to-leading order in $\\alpha_s$ in nonrelativistic QCD. Feeddown contributions from higher $\\chi_b$ and $\\Upsilon$ states are all considered for lower $\\Upsilon$ cross sections and polarizations. The long distance matrix elements (LDMEs) are extracted from the yield data, and then used to make predictions for the $\\Upsilon(nS)$ polarizations, which are found to be consistent with the measured polarization data within errors. In particular, the $\\Upsilon(3S)$ polarization puzzle can be understood by a large feeddo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.8537","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"}