{"paper":{"title":"Color-Octet Fragmentation and the psi' Surplus at the Tevatron","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Eric Braaten, Sean Fleming","submitted_at":"1994-11-23T00:20:59Z","abstract_excerpt":"The production rate of prompt $\\psi'$'s at large transverse momentum at the Tevatron is larger than theoretical expectations by about a factor of 30. As a solution to this puzzle, we suggest that the dominant $\\psi'$ production mechanism is the fragmentation of a gluon into a $c \\bar c$ pair in a pointlike color-octet S-wave state, which subsequently evolves nonperturbatively into a $\\psi'$ plus light hadrons. The contribution to the fragmentation function from this process is enhanced by a short-distance factor of $1/\\alpha_s^2$ relative to the conventional color-singlet contribution. This ma"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9411365","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"}