{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:KQOCQQDBPR4FVTVKTYPKO3CS2P","short_pith_number":"pith:KQOCQQDB","schema_version":"1.0","canonical_sha256":"541c2840617c785aceaa9e1ea76c52d3cce78e7e00e6f8a76e4b57b2bddd2b4c","source":{"kind":"arxiv","id":"1405.6211","version":2},"attestation_state":"computed","paper":{"title":"A Redux on \"When is the Top Quark a Parton?\"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A. Ismail, Ian Low, S. Dawson","submitted_at":"2014-05-23T20:01:57Z","abstract_excerpt":"If a new heavy particle phi is produced in association with the top quark in a hadron collider, the production cross section exhibits a collinear singularity of the form log(m_phi/m_t), which can be resummed by introducing a top quark parton distribution function (PDF). We reassess the necessity of such resummation in the context of a high energy pp collider. We find that the introduction of a top PDF typically has a small effect at sqrt(S) ~ 100 TeV due to three factors: 1) alpha_s at the scale mu = m_phi is quite small when log(m_phi/m_t) is large, 2) the Bjorken x << 1 for m_phi < ~10 TeV, "},"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":"1405.6211","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-05-23T20:01:57Z","cross_cats_sorted":[],"title_canon_sha256":"40b37059d70c783f0176d63758e800a38da484b82881f3a084c710947e3bd153","abstract_canon_sha256":"a8e3cbe0b39003a31117b595c9fd84fe46d6a45f646a7b92578d3151c2a942bf"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:48:09.165098Z","signature_b64":"VVx4k1jxavpej1YXhKNSFFwNQZnAiiA4sRAii3nYzRjFgAuIriNmAI3ci4d5ttFN8pcW1BUxWNSazIJt9pmtBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"541c2840617c785aceaa9e1ea76c52d3cce78e7e00e6f8a76e4b57b2bddd2b4c","last_reissued_at":"2026-05-18T02:48:09.164677Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:48:09.164677Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A Redux on \"When is the Top Quark a Parton?\"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A. Ismail, Ian Low, S. Dawson","submitted_at":"2014-05-23T20:01:57Z","abstract_excerpt":"If a new heavy particle phi is produced in association with the top quark in a hadron collider, the production cross section exhibits a collinear singularity of the form log(m_phi/m_t), which can be resummed by introducing a top quark parton distribution function (PDF). We reassess the necessity of such resummation in the context of a high energy pp collider. We find that the introduction of a top PDF typically has a small effect at sqrt(S) ~ 100 TeV due to three factors: 1) alpha_s at the scale mu = m_phi is quite small when log(m_phi/m_t) is large, 2) the Bjorken x << 1 for m_phi < ~10 TeV, "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.6211","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":""},"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":"1405.6211","created_at":"2026-05-18T02:48:09.164736+00:00"},{"alias_kind":"arxiv_version","alias_value":"1405.6211v2","created_at":"2026-05-18T02:48:09.164736+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.6211","created_at":"2026-05-18T02:48:09.164736+00:00"},{"alias_kind":"pith_short_12","alias_value":"KQOCQQDBPR4F","created_at":"2026-05-18T12:28:35.611951+00:00"},{"alias_kind":"pith_short_16","alias_value":"KQOCQQDBPR4FVTVK","created_at":"2026-05-18T12:28:35.611951+00:00"},{"alias_kind":"pith_short_8","alias_value":"KQOCQQDB","created_at":"2026-05-18T12:28:35.611951+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/KQOCQQDBPR4FVTVKTYPKO3CS2P","json":"https://pith.science/pith/KQOCQQDBPR4FVTVKTYPKO3CS2P.json","graph_json":"https://pith.science/api/pith-number/KQOCQQDBPR4FVTVKTYPKO3CS2P/graph.json","events_json":"https://pith.science/api/pith-number/KQOCQQDBPR4FVTVKTYPKO3CS2P/events.json","paper":"https://pith.science/paper/KQOCQQDB"},"agent_actions":{"view_html":"https://pith.science/pith/KQOCQQDBPR4FVTVKTYPKO3CS2P","download_json":"https://pith.science/pith/KQOCQQDBPR4FVTVKTYPKO3CS2P.json","view_paper":"https://pith.science/paper/KQOCQQDB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1405.6211&json=true","fetch_graph":"https://pith.science/api/pith-number/KQOCQQDBPR4FVTVKTYPKO3CS2P/graph.json","fetch_events":"https://pith.science/api/pith-number/KQOCQQDBPR4FVTVKTYPKO3CS2P/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/KQOCQQDBPR4FVTVKTYPKO3CS2P/action/timestamp_anchor","attest_storage":"https://pith.science/pith/KQOCQQDBPR4FVTVKTYPKO3CS2P/action/storage_attestation","attest_author":"https://pith.science/pith/KQOCQQDBPR4FVTVKTYPKO3CS2P/action/author_attestation","sign_citation":"https://pith.science/pith/KQOCQQDBPR4FVTVKTYPKO3CS2P/action/citation_signature","submit_replication":"https://pith.science/pith/KQOCQQDBPR4FVTVKTYPKO3CS2P/action/replication_record"}},"created_at":"2026-05-18T02:48:09.164736+00:00","updated_at":"2026-05-18T02:48:09.164736+00:00"}