{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:LEP3Q7S3YXPIXYDQIT3WJAW6F7","short_pith_number":"pith:LEP3Q7S3","schema_version":"1.0","canonical_sha256":"591fb87e5bc5de8be07044f76482de2ff298a54ae46c13b080de18d92567a7e1","source":{"kind":"arxiv","id":"1806.10232","version":1},"attestation_state":"computed","paper":{"title":"Pion and kaon valence quark distribution functions from Dyson-Schwinger equations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"Cedric Mezrag, Chao Shi, Hong-shi Zong","submitted_at":"2018-06-26T22:31:30Z","abstract_excerpt":"Using realistic quark propagators and meson Bethe-Salpeter amplitudes based on the Dyson-Schwinger equations, we calculate the pion and kaon's valence parton distribution functions (PDF) through the modified impulse approximation. The PDFs we obtained at hadronic scale have the purely valence characteristic and exhibit both dynamical chiral symmetry breaking and SU(3) flavor symmetry breaking effects. A new calculation technique is introduced to determine the valence PDFs with precision. Through NLO DGLAP evolution, our result is compared with pion and kaon valence PDF data at experimental sca"},"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":"1806.10232","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2018-06-26T22:31:30Z","cross_cats_sorted":[],"title_canon_sha256":"de9820dec568bbdaae56916ec2e35a177853a7c3138e25088d0c8bbe04f8db64","abstract_canon_sha256":"9fedb257d70444176cc3a9afec7debbdd3f0eadb7364385ba69635335458e279"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:04:16.808645Z","signature_b64":"QUZQrxI/X7rk1Y73TYoJymOfIA49qespsj0wyVhx6VkJsxNur9qsNAVwtnKeC6X6XYxUq/jL8w7gkNKg3qvJCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"591fb87e5bc5de8be07044f76482de2ff298a54ae46c13b080de18d92567a7e1","last_reissued_at":"2026-05-18T00:04:16.807888Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:04:16.807888Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Pion and kaon valence quark distribution functions from Dyson-Schwinger equations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"Cedric Mezrag, Chao Shi, Hong-shi Zong","submitted_at":"2018-06-26T22:31:30Z","abstract_excerpt":"Using realistic quark propagators and meson Bethe-Salpeter amplitudes based on the Dyson-Schwinger equations, we calculate the pion and kaon's valence parton distribution functions (PDF) through the modified impulse approximation. The PDFs we obtained at hadronic scale have the purely valence characteristic and exhibit both dynamical chiral symmetry breaking and SU(3) flavor symmetry breaking effects. A new calculation technique is introduced to determine the valence PDFs with precision. Through NLO DGLAP evolution, our result is compared with pion and kaon valence PDF data at experimental sca"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.10232","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":"1806.10232","created_at":"2026-05-18T00:04:16.808002+00:00"},{"alias_kind":"arxiv_version","alias_value":"1806.10232v1","created_at":"2026-05-18T00:04:16.808002+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.10232","created_at":"2026-05-18T00:04:16.808002+00:00"},{"alias_kind":"pith_short_12","alias_value":"LEP3Q7S3YXPI","created_at":"2026-05-18T12:32:37.024351+00:00"},{"alias_kind":"pith_short_16","alias_value":"LEP3Q7S3YXPIXYDQ","created_at":"2026-05-18T12:32:37.024351+00:00"},{"alias_kind":"pith_short_8","alias_value":"LEP3Q7S3","created_at":"2026-05-18T12:32:37.024351+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2507.14637","citing_title":"Determination of Fragmentation Functions from Charge Asymmetries in Hadron Production","ref_index":36,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/LEP3Q7S3YXPIXYDQIT3WJAW6F7","json":"https://pith.science/pith/LEP3Q7S3YXPIXYDQIT3WJAW6F7.json","graph_json":"https://pith.science/api/pith-number/LEP3Q7S3YXPIXYDQIT3WJAW6F7/graph.json","events_json":"https://pith.science/api/pith-number/LEP3Q7S3YXPIXYDQIT3WJAW6F7/events.json","paper":"https://pith.science/paper/LEP3Q7S3"},"agent_actions":{"view_html":"https://pith.science/pith/LEP3Q7S3YXPIXYDQIT3WJAW6F7","download_json":"https://pith.science/pith/LEP3Q7S3YXPIXYDQIT3WJAW6F7.json","view_paper":"https://pith.science/paper/LEP3Q7S3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1806.10232&json=true","fetch_graph":"https://pith.science/api/pith-number/LEP3Q7S3YXPIXYDQIT3WJAW6F7/graph.json","fetch_events":"https://pith.science/api/pith-number/LEP3Q7S3YXPIXYDQIT3WJAW6F7/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LEP3Q7S3YXPIXYDQIT3WJAW6F7/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LEP3Q7S3YXPIXYDQIT3WJAW6F7/action/storage_attestation","attest_author":"https://pith.science/pith/LEP3Q7S3YXPIXYDQIT3WJAW6F7/action/author_attestation","sign_citation":"https://pith.science/pith/LEP3Q7S3YXPIXYDQIT3WJAW6F7/action/citation_signature","submit_replication":"https://pith.science/pith/LEP3Q7S3YXPIXYDQIT3WJAW6F7/action/replication_record"}},"created_at":"2026-05-18T00:04:16.808002+00:00","updated_at":"2026-05-18T00:04:16.808002+00:00"}