{"paper":{"title":"Inclusive $\\chi_{cJ}$ production in $\\Upsilon$ decay at $\\mathcal{O}(\\alpha_s^5)$ in NRQCD factorization","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Bernd A. Kniehl, Xiang-Peng Wang, Zhi-Guo He","submitted_at":"2018-09-03T14:14:31Z","abstract_excerpt":"Inclusive $\\chi_{cJ}$ $(J=0,1,2)$ production from $\\Upsilon(1S)$ decay is studied within the framework of nonrelativistic QCD (NRQCD) factorization at leading order in $v_Q^2$, which includes the contributions of $b\\bar{b}({}^3S_1^{[1]})\\to c\\bar{c}(^3P_J^{[1]})+X$ and $b\\bar{b}({}^3S_1^{[1]})\\to c\\bar{c}(^3S_1^{[8]})+X$. For both channels, the short-distance coefficients are calculated through ${\\cal O}(\\alpha_s^5)$, which is next-to-leading order for the second one. By fitting to the measured $\\Upsilon(1S)$ branching fractions to $\\chi_{c1}$ and $\\chi_{c2}$, we obtain the color-octet long-di"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.00612","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"}