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Using the color-octet matrix elements determined by fitting the $J/\\psi$ production at the Tevatron, we find that the color-octet($c\\bar{c}) _{8}({^1S_0}~{\\rm and~}~{^3P_J})$ contributions to the $J/\\psi$ photoproductions at the fixed target experiments and HERA are too large compared to the data on"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"hep-ph/9602223","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1996-02-05T11:05:34Z","cross_cats_sorted":[],"title_canon_sha256":"bdd01277abb64c1face2b9134dddf294d0ce8e0013b2eee00c656b3a422f2fb4","abstract_canon_sha256":"37fda899c6cbdacb1be873130940d9920d301bca80a23807fed5731ed1a043a0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:37:12.058661Z","signature_b64":"ZvRjhZ5IhwnN0hHc3rPJvRS1k/ydG8ndaSTq7gQ/BRu1eY37fsYYf7Yi9+37Iz2EKK12x9s/H3c1NX9qiBmvCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0a62f99d9bf9ec53d184f33b8d887c36f647180b05ae792d5072850cdf74dd11","last_reissued_at":"2026-05-18T02:37:12.058219Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:37:12.058219Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Color-octet mechanism in $\\gamma + p \\to J/\\psi + X$","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"H. 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