{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1994:WT3JTGYUBVPLZIEVPHHITU7CQ4","short_pith_number":"pith:WT3JTGYU","schema_version":"1.0","canonical_sha256":"b4f6999b140d5ebca09579ce89d3e28708915c739fc9798a79d9098c99a94987","source":{"kind":"arxiv","id":"hep-ph/9405261","version":1},"attestation_state":"computed","paper":{"title":"Spin Alignment in the Production of Vector Mesons with Charm and/or Beauty via Heavy Quark Fragmentation","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"kingman Cheung, Tzu Chiang Yuan","submitted_at":"1994-05-10T19:55:15Z","abstract_excerpt":"We calculate the process-independent fragmentation functions for a $\\bar b$ antiquark to fragment into longitudinally and transversely polarized $B_c^*$ ($^3S_1$) mesons to leading order in the QCD strong coupling constant. In the special case of equal quark mass we recover previous results for the fragmentation of $c\\to \\psi$ and $b\\to\\Upsilon$. Various spin asymmetry parameters are defined as measures of the relative population of the longitudinally and transversely polarized vector meson states. In the heavy quark mass limit $m_b \\to \\infty$ our polarized fragmentation functions obey heavy "},"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/9405261","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1994-05-10T19:55:15Z","cross_cats_sorted":[],"title_canon_sha256":"79c00431a2fc79d84c8d2487b136245ce8e1450ff9eb263c5c769fa15a03e7a6","abstract_canon_sha256":"119483f22b7d1e6c4fe03e7191a7f0a0bbed0d74b5b02edce9ea4af8e84b2108"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:30:37.876768Z","signature_b64":"tW4X56MXjJc41I52uMfJsVuq2JOZKrfAa/ofB6g99IkZU5S4StUVDpy/BXF2ojBOILHXex6zryf+PeJziIXpBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b4f6999b140d5ebca09579ce89d3e28708915c739fc9798a79d9098c99a94987","last_reissued_at":"2026-05-18T04:30:37.876021Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:30:37.876021Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Spin Alignment in the Production of Vector Mesons with Charm and/or Beauty via Heavy Quark Fragmentation","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"kingman Cheung, Tzu Chiang Yuan","submitted_at":"1994-05-10T19:55:15Z","abstract_excerpt":"We calculate the process-independent fragmentation functions for a $\\bar b$ antiquark to fragment into longitudinally and transversely polarized $B_c^*$ ($^3S_1$) mesons to leading order in the QCD strong coupling constant. In the special case of equal quark mass we recover previous results for the fragmentation of $c\\to \\psi$ and $b\\to\\Upsilon$. Various spin asymmetry parameters are defined as measures of the relative population of the longitudinally and transversely polarized vector meson states. In the heavy quark mass limit $m_b \\to \\infty$ our polarized fragmentation functions obey heavy "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9405261","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9405261","created_at":"2026-05-18T04:30:37.876157+00:00"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9405261v1","created_at":"2026-05-18T04:30:37.876157+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9405261","created_at":"2026-05-18T04:30:37.876157+00:00"},{"alias_kind":"pith_short_12","alias_value":"WT3JTGYUBVPL","created_at":"2026-05-18T12:25:47.102015+00:00"},{"alias_kind":"pith_short_16","alias_value":"WT3JTGYUBVPLZIEV","created_at":"2026-05-18T12:25:47.102015+00:00"},{"alias_kind":"pith_short_8","alias_value":"WT3JTGYU","created_at":"2026-05-18T12:25:47.102015+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/WT3JTGYUBVPLZIEVPHHITU7CQ4","json":"https://pith.science/pith/WT3JTGYUBVPLZIEVPHHITU7CQ4.json","graph_json":"https://pith.science/api/pith-number/WT3JTGYUBVPLZIEVPHHITU7CQ4/graph.json","events_json":"https://pith.science/api/pith-number/WT3JTGYUBVPLZIEVPHHITU7CQ4/events.json","paper":"https://pith.science/paper/WT3JTGYU"},"agent_actions":{"view_html":"https://pith.science/pith/WT3JTGYUBVPLZIEVPHHITU7CQ4","download_json":"https://pith.science/pith/WT3JTGYUBVPLZIEVPHHITU7CQ4.json","view_paper":"https://pith.science/paper/WT3JTGYU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=hep-ph/9405261&json=true","fetch_graph":"https://pith.science/api/pith-number/WT3JTGYUBVPLZIEVPHHITU7CQ4/graph.json","fetch_events":"https://pith.science/api/pith-number/WT3JTGYUBVPLZIEVPHHITU7CQ4/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/WT3JTGYUBVPLZIEVPHHITU7CQ4/action/timestamp_anchor","attest_storage":"https://pith.science/pith/WT3JTGYUBVPLZIEVPHHITU7CQ4/action/storage_attestation","attest_author":"https://pith.science/pith/WT3JTGYUBVPLZIEVPHHITU7CQ4/action/author_attestation","sign_citation":"https://pith.science/pith/WT3JTGYUBVPLZIEVPHHITU7CQ4/action/citation_signature","submit_replication":"https://pith.science/pith/WT3JTGYUBVPLZIEVPHHITU7CQ4/action/replication_record"}},"created_at":"2026-05-18T04:30:37.876157+00:00","updated_at":"2026-05-18T04:30:37.876157+00:00"}