{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:PW74SYCD7GS5JQZNT76YQL4KNP","short_pith_number":"pith:PW74SYCD","schema_version":"1.0","canonical_sha256":"7dbfc96043f9a5d4c32d9ffd882f8a6bf620f4e71acb7f551b037ecd760a2591","source":{"kind":"arxiv","id":"2110.07529","version":2},"attestation_state":"computed","paper":{"title":"$J/\\psi$ polarization in semi-inclusive DIS at low and high transverse momentum","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Cristian Pisano, Francesco Murgia, Luca Maxia, Sangem Rajesh, Umberto D'Alesio","submitted_at":"2021-10-14T16:48:45Z","abstract_excerpt":"We study the polar and azimuthal decay angular distributions of $J/\\psi$ mesons produced in semi-inclusive, deep-inelastic electron-proton scattering. For the description of the quarkonium formation mechanism, we adopt the framework of nonrelativistic QCD, with the inclusion of the intermediate color-octet channels that are suppressed at most by a factor $v^4$ in the velocity parameter $v$ relative to the leading color-singlet channel. We put forward factorized expressions for the helicity structure functions in terms of transverse momentum dependent gluon distributions and shape functions, wh"},"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":"2110.07529","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2021-10-14T16:48:45Z","cross_cats_sorted":[],"title_canon_sha256":"1a4353d18d3ddec3e2e252a7798ca53d2cd91719de8296bade5802f2b87f4abd","abstract_canon_sha256":"40860b8fb81a41717f5d31c380586e3493b78301562ac5274537a64f78062c61"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:07:25.983612Z","signature_b64":"i1cTJqHqr6c4Y9LqFIQAlbdBfw1liD0Veju8yZ3/0LeKU0nT9Mbp0Flq3CsP2GhDQNC/1FEKeUJ23rW/wLYmAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7dbfc96043f9a5d4c32d9ffd882f8a6bf620f4e71acb7f551b037ecd760a2591","last_reissued_at":"2026-07-05T04:07:25.983089Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:07:25.983089Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"$J/\\psi$ polarization in semi-inclusive DIS at low and high transverse momentum","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Cristian Pisano, Francesco Murgia, Luca Maxia, Sangem Rajesh, Umberto D'Alesio","submitted_at":"2021-10-14T16:48:45Z","abstract_excerpt":"We study the polar and azimuthal decay angular distributions of $J/\\psi$ mesons produced in semi-inclusive, deep-inelastic electron-proton scattering. For the description of the quarkonium formation mechanism, we adopt the framework of nonrelativistic QCD, with the inclusion of the intermediate color-octet channels that are suppressed at most by a factor $v^4$ in the velocity parameter $v$ relative to the leading color-singlet channel. We put forward factorized expressions for the helicity structure functions in terms of transverse momentum dependent gluon distributions and shape functions, wh"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2110.07529","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2110.07529/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2110.07529","created_at":"2026-07-05T04:07:25.983149+00:00"},{"alias_kind":"arxiv_version","alias_value":"2110.07529v2","created_at":"2026-07-05T04:07:25.983149+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2110.07529","created_at":"2026-07-05T04:07:25.983149+00:00"},{"alias_kind":"pith_short_12","alias_value":"PW74SYCD7GS5","created_at":"2026-07-05T04:07:25.983149+00:00"},{"alias_kind":"pith_short_16","alias_value":"PW74SYCD7GS5JQZN","created_at":"2026-07-05T04:07:25.983149+00:00"},{"alias_kind":"pith_short_8","alias_value":"PW74SYCD","created_at":"2026-07-05T04:07:25.983149+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2509.02977","citing_title":"The role of the soft scale for $J/\\psi$ production in the transverse momentum dependent framework","ref_index":66,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/PW74SYCD7GS5JQZNT76YQL4KNP","json":"https://pith.science/pith/PW74SYCD7GS5JQZNT76YQL4KNP.json","graph_json":"https://pith.science/api/pith-number/PW74SYCD7GS5JQZNT76YQL4KNP/graph.json","events_json":"https://pith.science/api/pith-number/PW74SYCD7GS5JQZNT76YQL4KNP/events.json","paper":"https://pith.science/paper/PW74SYCD"},"agent_actions":{"view_html":"https://pith.science/pith/PW74SYCD7GS5JQZNT76YQL4KNP","download_json":"https://pith.science/pith/PW74SYCD7GS5JQZNT76YQL4KNP.json","view_paper":"https://pith.science/paper/PW74SYCD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2110.07529&json=true","fetch_graph":"https://pith.science/api/pith-number/PW74SYCD7GS5JQZNT76YQL4KNP/graph.json","fetch_events":"https://pith.science/api/pith-number/PW74SYCD7GS5JQZNT76YQL4KNP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PW74SYCD7GS5JQZNT76YQL4KNP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PW74SYCD7GS5JQZNT76YQL4KNP/action/storage_attestation","attest_author":"https://pith.science/pith/PW74SYCD7GS5JQZNT76YQL4KNP/action/author_attestation","sign_citation":"https://pith.science/pith/PW74SYCD7GS5JQZNT76YQL4KNP/action/citation_signature","submit_replication":"https://pith.science/pith/PW74SYCD7GS5JQZNT76YQL4KNP/action/replication_record"}},"created_at":"2026-07-05T04:07:25.983149+00:00","updated_at":"2026-07-05T04:07:25.983149+00:00"}