{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:75X5WJ3MIJYEEOS5JKYGGTJBMT","short_pith_number":"pith:75X5WJ3M","schema_version":"1.0","canonical_sha256":"ff6fdb276c4270423a5d4ab0634d2164dacb70ad03cba3eb10c71b042c982b27","source":{"kind":"arxiv","id":"2002.09248","version":3},"attestation_state":"computed","paper":{"title":"Collinear Electroweak Radiation in Antenna Parton Showers","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Rob Verheyen, Ronald Kleiss","submitted_at":"2020-02-21T12:37:49Z","abstract_excerpt":"We present a first implementation of collinear electroweak radiation in the Vincia parton shower. Due to the chiral nature of the electroweak theory, explicit spin dependence in the shower algorithm is required. We thus use the spinor-helicity formalism to compute helicity-dependent branching kernels, taking special care to deal with the gauge relics that may appear in computation that involve longitudinal polarizations of the massive electroweak vector bosons. These kernels are used to construct a shower algorithm that includes all possible collinear final-state electroweak branchings, includ"},"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":"2002.09248","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2020-02-21T12:37:49Z","cross_cats_sorted":[],"title_canon_sha256":"a15a09b1e9702d118617fffed54dedeb6dcb2bad54fc5c691722720a4271f900","abstract_canon_sha256":"2f790a1d233b48943e3064fc03832ce07839fcc1d028145fe76e36c2a9050560"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:55:46.997419Z","signature_b64":"6FhGqw/8YQVQvQLMdnnqpQN0JKEcfCwia+vnB1PcCF/pdTGWy6OEOX54CE2asNrOPe2S12fAIrCSXx1j3l6uBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ff6fdb276c4270423a5d4ab0634d2164dacb70ad03cba3eb10c71b042c982b27","last_reissued_at":"2026-07-05T01:55:46.996938Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:55:46.996938Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Collinear Electroweak Radiation in Antenna Parton Showers","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Rob Verheyen, Ronald Kleiss","submitted_at":"2020-02-21T12:37:49Z","abstract_excerpt":"We present a first implementation of collinear electroweak radiation in the Vincia parton shower. Due to the chiral nature of the electroweak theory, explicit spin dependence in the shower algorithm is required. We thus use the spinor-helicity formalism to compute helicity-dependent branching kernels, taking special care to deal with the gauge relics that may appear in computation that involve longitudinal polarizations of the massive electroweak vector bosons. These kernels are used to construct a shower algorithm that includes all possible collinear final-state electroweak branchings, includ"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.09248","kind":"arxiv","version":3},"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/2002.09248/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":"2002.09248","created_at":"2026-07-05T01:55:46.996995+00:00"},{"alias_kind":"arxiv_version","alias_value":"2002.09248v3","created_at":"2026-07-05T01:55:46.996995+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.09248","created_at":"2026-07-05T01:55:46.996995+00:00"},{"alias_kind":"pith_short_12","alias_value":"75X5WJ3MIJYE","created_at":"2026-07-05T01:55:46.996995+00:00"},{"alias_kind":"pith_short_16","alias_value":"75X5WJ3MIJYEEOS5","created_at":"2026-07-05T01:55:46.996995+00:00"},{"alias_kind":"pith_short_8","alias_value":"75X5WJ3M","created_at":"2026-07-05T01:55:46.996995+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2203.11601","citing_title":"A comprehensive guide to the physics and usage of PYTHIA 8.3","ref_index":106,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/75X5WJ3MIJYEEOS5JKYGGTJBMT","json":"https://pith.science/pith/75X5WJ3MIJYEEOS5JKYGGTJBMT.json","graph_json":"https://pith.science/api/pith-number/75X5WJ3MIJYEEOS5JKYGGTJBMT/graph.json","events_json":"https://pith.science/api/pith-number/75X5WJ3MIJYEEOS5JKYGGTJBMT/events.json","paper":"https://pith.science/paper/75X5WJ3M"},"agent_actions":{"view_html":"https://pith.science/pith/75X5WJ3MIJYEEOS5JKYGGTJBMT","download_json":"https://pith.science/pith/75X5WJ3MIJYEEOS5JKYGGTJBMT.json","view_paper":"https://pith.science/paper/75X5WJ3M","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2002.09248&json=true","fetch_graph":"https://pith.science/api/pith-number/75X5WJ3MIJYEEOS5JKYGGTJBMT/graph.json","fetch_events":"https://pith.science/api/pith-number/75X5WJ3MIJYEEOS5JKYGGTJBMT/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/75X5WJ3MIJYEEOS5JKYGGTJBMT/action/timestamp_anchor","attest_storage":"https://pith.science/pith/75X5WJ3MIJYEEOS5JKYGGTJBMT/action/storage_attestation","attest_author":"https://pith.science/pith/75X5WJ3MIJYEEOS5JKYGGTJBMT/action/author_attestation","sign_citation":"https://pith.science/pith/75X5WJ3MIJYEEOS5JKYGGTJBMT/action/citation_signature","submit_replication":"https://pith.science/pith/75X5WJ3MIJYEEOS5JKYGGTJBMT/action/replication_record"}},"created_at":"2026-07-05T01:55:46.996995+00:00","updated_at":"2026-07-05T01:55:46.996995+00:00"}