{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:L5NDMA2LQFHQ6BIZLHGVG263CQ","short_pith_number":"pith:L5NDMA2L","schema_version":"1.0","canonical_sha256":"5f5a36034b814f0f051959cd536bdb14128797f8a8f62bde02a9717d21286948","source":{"kind":"arxiv","id":"1904.11866","version":2},"attestation_state":"computed","paper":{"title":"Logarithmic Accuracy of Angular-Ordered Parton Showers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Gavin Bewick, Michael H. Seymour, Peter Richardson, Silvia Ferrario Ravasio","submitted_at":"2019-04-26T14:26:40Z","abstract_excerpt":"We study the logarithmic accuracy of angular-ordered parton showers by considering the singular limits of multiple emission matrix elements. This allows us to consider different choices for the evolution variable and propose a new choice which has both the correct logarithmic behaviour and improved performance away from the singular regions. In particular the description of $e^+e^-$ event shapes in the non-logarithmic region is significantly improved."},"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":"1904.11866","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-04-26T14:26:40Z","cross_cats_sorted":[],"title_canon_sha256":"f1253e1480b0862073205f6188177620b9d8d898eae1ea3d93cab0319293c374","abstract_canon_sha256":"b28c97018a1bd32b6ed53f2f2476ce0bcccd413ca9407c2a7742ce5fff49d2a7"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:50:42.952430Z","signature_b64":"byGocvsJgcWzAyT31BGSZpjamcuMwdRxXykskWWDcOJ4iwyhxLREMoNyu1lhHclNsWGa4/Yf6TiQYaXLy67IDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5f5a36034b814f0f051959cd536bdb14128797f8a8f62bde02a9717d21286948","last_reissued_at":"2026-07-05T00:50:42.951958Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:50:42.951958Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Logarithmic Accuracy of Angular-Ordered Parton Showers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Gavin Bewick, Michael H. Seymour, Peter Richardson, Silvia Ferrario Ravasio","submitted_at":"2019-04-26T14:26:40Z","abstract_excerpt":"We study the logarithmic accuracy of angular-ordered parton showers by considering the singular limits of multiple emission matrix elements. This allows us to consider different choices for the evolution variable and propose a new choice which has both the correct logarithmic behaviour and improved performance away from the singular regions. In particular the description of $e^+e^-$ event shapes in the non-logarithmic region is significantly improved."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.11866","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/1904.11866/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":"1904.11866","created_at":"2026-07-05T00:50:42.952014+00:00"},{"alias_kind":"arxiv_version","alias_value":"1904.11866v2","created_at":"2026-07-05T00:50:42.952014+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.11866","created_at":"2026-07-05T00:50:42.952014+00:00"},{"alias_kind":"pith_short_12","alias_value":"L5NDMA2LQFHQ","created_at":"2026-07-05T00:50:42.952014+00:00"},{"alias_kind":"pith_short_16","alias_value":"L5NDMA2LQFHQ6BIZ","created_at":"2026-07-05T00:50:42.952014+00:00"},{"alias_kind":"pith_short_8","alias_value":"L5NDMA2L","created_at":"2026-07-05T00:50:42.952014+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":4,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2605.02622","citing_title":"Studying the Infrared Behaviour of Improved Logarithmic Accuracy Parton Showers with Herwig","ref_index":15,"is_internal_anchor":false},{"citing_arxiv_id":"2605.13953","citing_title":"Logarithmically-accurate showers with massive quarks","ref_index":21,"is_internal_anchor":false},{"citing_arxiv_id":"2604.13932","citing_title":"A dynamical implementation of colour coherence for quenched jets in JEWEL","ref_index":31,"is_internal_anchor":false},{"citing_arxiv_id":"2605.02622","citing_title":"Studying the Infrared Behaviour of Improved Logarithmic Accuracy Parton Showers with Herwig","ref_index":15,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/L5NDMA2LQFHQ6BIZLHGVG263CQ","json":"https://pith.science/pith/L5NDMA2LQFHQ6BIZLHGVG263CQ.json","graph_json":"https://pith.science/api/pith-number/L5NDMA2LQFHQ6BIZLHGVG263CQ/graph.json","events_json":"https://pith.science/api/pith-number/L5NDMA2LQFHQ6BIZLHGVG263CQ/events.json","paper":"https://pith.science/paper/L5NDMA2L"},"agent_actions":{"view_html":"https://pith.science/pith/L5NDMA2LQFHQ6BIZLHGVG263CQ","download_json":"https://pith.science/pith/L5NDMA2LQFHQ6BIZLHGVG263CQ.json","view_paper":"https://pith.science/paper/L5NDMA2L","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1904.11866&json=true","fetch_graph":"https://pith.science/api/pith-number/L5NDMA2LQFHQ6BIZLHGVG263CQ/graph.json","fetch_events":"https://pith.science/api/pith-number/L5NDMA2LQFHQ6BIZLHGVG263CQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/L5NDMA2LQFHQ6BIZLHGVG263CQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/L5NDMA2LQFHQ6BIZLHGVG263CQ/action/storage_attestation","attest_author":"https://pith.science/pith/L5NDMA2LQFHQ6BIZLHGVG263CQ/action/author_attestation","sign_citation":"https://pith.science/pith/L5NDMA2LQFHQ6BIZLHGVG263CQ/action/citation_signature","submit_replication":"https://pith.science/pith/L5NDMA2LQFHQ6BIZLHGVG263CQ/action/replication_record"}},"created_at":"2026-07-05T00:50:42.952014+00:00","updated_at":"2026-07-05T00:50:42.952014+00:00"}