{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:HAUP7VCOQFPAZXVTQWJFA2K3DM","short_pith_number":"pith:HAUP7VCO","schema_version":"1.0","canonical_sha256":"3828ffd44e815e0cdeb3859250695b1b208e8f392710d2a03b1b536962b9fc87","source":{"kind":"arxiv","id":"2409.18078","version":1},"attestation_state":"computed","paper":{"title":"Exploring the three-dimensional momentum distribution of longitudinally polarized quarks in the proton","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Alessandro Bacchetta, Alessia Bongallino, Lorenzo Rossi, Marco Radici, Matteo Cerutti","submitted_at":"2024-09-26T17:24:34Z","abstract_excerpt":"By analyzing experimental data on semi-inclusive deep inelastic scattering off longitudinally polarized targets, we extract the transverse momentum dependence of the quark helicity distribution, i.e., the difference between the three-dimensional motion of quarks with polarization parallel or antiparallel to the longitudinal polarization of the parent hadron. We perform the analysis at next-to-leading (NLL) and next-to-next-to-leading (NNLL) perturbative accuracy. The quality of the fit is very good for both cases, reaching a $\\chi^2$ per number of data points equal to $1.11$ and $1.09$, respec"},"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":"2409.18078","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-09-26T17:24:34Z","cross_cats_sorted":[],"title_canon_sha256":"1fad29c2608a476feddf53994f4c95641ea75562c9f814fada9e798b399b31d9","abstract_canon_sha256":"6d76766fb61623f7fa0f012e1236657f9e66a5b156622966c93fcb92827078c8"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:12:20.182978Z","signature_b64":"k4MuBckGnT0yf2nNO5JJypTTymeR6xRZNpjucIRXUa68rlSLvjaAGOdWD8p4tqwe9qNyBzz3UyV3P67QzuoPCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3828ffd44e815e0cdeb3859250695b1b208e8f392710d2a03b1b536962b9fc87","last_reissued_at":"2026-07-05T09:12:20.182501Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:12:20.182501Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Exploring the three-dimensional momentum distribution of longitudinally polarized quarks in the proton","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Alessandro Bacchetta, Alessia Bongallino, Lorenzo Rossi, Marco Radici, Matteo Cerutti","submitted_at":"2024-09-26T17:24:34Z","abstract_excerpt":"By analyzing experimental data on semi-inclusive deep inelastic scattering off longitudinally polarized targets, we extract the transverse momentum dependence of the quark helicity distribution, i.e., the difference between the three-dimensional motion of quarks with polarization parallel or antiparallel to the longitudinal polarization of the parent hadron. We perform the analysis at next-to-leading (NLL) and next-to-next-to-leading (NNLL) perturbative accuracy. The quality of the fit is very good for both cases, reaching a $\\chi^2$ per number of data points equal to $1.11$ and $1.09$, respec"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.18078","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2409.18078/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":"2409.18078","created_at":"2026-07-05T09:12:20.182560+00:00"},{"alias_kind":"arxiv_version","alias_value":"2409.18078v1","created_at":"2026-07-05T09:12:20.182560+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.18078","created_at":"2026-07-05T09:12:20.182560+00:00"},{"alias_kind":"pith_short_12","alias_value":"HAUP7VCOQFPA","created_at":"2026-07-05T09:12:20.182560+00:00"},{"alias_kind":"pith_short_16","alias_value":"HAUP7VCOQFPAZXVT","created_at":"2026-07-05T09:12:20.182560+00:00"},{"alias_kind":"pith_short_8","alias_value":"HAUP7VCO","created_at":"2026-07-05T09:12:20.182560+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":5,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.19221","citing_title":"The Collins-Soper kernel from a vacuum soft function","ref_index":20,"is_internal_anchor":false},{"citing_arxiv_id":"2605.28216","citing_title":"A first extraction of gluon TMDs from Higgs data at the LHC","ref_index":51,"is_internal_anchor":false},{"citing_arxiv_id":"2605.06606","citing_title":"TMDs in the Lens of Generative AI: A Pixel-Based Approach to Partonic Imaging","ref_index":22,"is_internal_anchor":false},{"citing_arxiv_id":"2605.06606","citing_title":"TMDs in the Lens of Generative AI: A Pixel-Based Approach to Partonic Imaging","ref_index":21,"is_internal_anchor":false},{"citing_arxiv_id":"2605.07516","citing_title":"Collinear matching for leading power gluon transverse momentum distributions","ref_index":6,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/HAUP7VCOQFPAZXVTQWJFA2K3DM","json":"https://pith.science/pith/HAUP7VCOQFPAZXVTQWJFA2K3DM.json","graph_json":"https://pith.science/api/pith-number/HAUP7VCOQFPAZXVTQWJFA2K3DM/graph.json","events_json":"https://pith.science/api/pith-number/HAUP7VCOQFPAZXVTQWJFA2K3DM/events.json","paper":"https://pith.science/paper/HAUP7VCO"},"agent_actions":{"view_html":"https://pith.science/pith/HAUP7VCOQFPAZXVTQWJFA2K3DM","download_json":"https://pith.science/pith/HAUP7VCOQFPAZXVTQWJFA2K3DM.json","view_paper":"https://pith.science/paper/HAUP7VCO","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2409.18078&json=true","fetch_graph":"https://pith.science/api/pith-number/HAUP7VCOQFPAZXVTQWJFA2K3DM/graph.json","fetch_events":"https://pith.science/api/pith-number/HAUP7VCOQFPAZXVTQWJFA2K3DM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/HAUP7VCOQFPAZXVTQWJFA2K3DM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/HAUP7VCOQFPAZXVTQWJFA2K3DM/action/storage_attestation","attest_author":"https://pith.science/pith/HAUP7VCOQFPAZXVTQWJFA2K3DM/action/author_attestation","sign_citation":"https://pith.science/pith/HAUP7VCOQFPAZXVTQWJFA2K3DM/action/citation_signature","submit_replication":"https://pith.science/pith/HAUP7VCOQFPAZXVTQWJFA2K3DM/action/replication_record"}},"created_at":"2026-07-05T09:12:20.182560+00:00","updated_at":"2026-07-05T09:12:20.182560+00:00"}