{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:LBOKDXVNFTVPMUUN5XSDFNPZHI","short_pith_number":"pith:LBOKDXVN","schema_version":"1.0","canonical_sha256":"585ca1dead2ceaf6528dede432b5f93a2c3026230d7b2e9b88d4b01b66353dea","source":{"kind":"arxiv","id":"1609.09813","version":1},"attestation_state":"computed","paper":{"title":"Subleading power corrections in radiative leptonic $B$ decay","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Yu-Ming Wang","submitted_at":"2016-09-30T17:04:46Z","abstract_excerpt":"I discuss the two-particle subleading power corrections in radiative leptonic $B \\to \\gamma \\ell \\nu$ decay at next-to-leading order in $\\alpha_s$ with the dispersion approach. Employing the method of regions, factorization of the $B \\to \\gamma^{\\ast}$ form factors is demonstrated explicitly, at one loop, for a space-like hard-collinear photon. The two-particle soft (end-point) contribution is shown to be suppressed by one power of $\\Lambda/m_b$, in the heavy quark limit, compared with the leading power contribution computed from QCD factorization. I further report the recent calculation on th"},"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":"1609.09813","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-09-30T17:04:46Z","cross_cats_sorted":[],"title_canon_sha256":"4de72b81d96efe611d89b17eb69f447fa93682e3be573ef36de194a8594b9866","abstract_canon_sha256":"97a7b579e469ede41a74315cf3098c209ff75c969b90420324b016ca06113d8e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:03:33.302737Z","signature_b64":"FujZP1YEUW5J5ldQbg1fn8dcPlNv3yegSwg3qa0Xc4uO6sVwTBktBCmhY5PCpMBPV4aCaVODY427EuzazzJjAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"585ca1dead2ceaf6528dede432b5f93a2c3026230d7b2e9b88d4b01b66353dea","last_reissued_at":"2026-05-18T01:03:33.302282Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:03:33.302282Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Subleading power corrections in radiative leptonic $B$ decay","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Yu-Ming Wang","submitted_at":"2016-09-30T17:04:46Z","abstract_excerpt":"I discuss the two-particle subleading power corrections in radiative leptonic $B \\to \\gamma \\ell \\nu$ decay at next-to-leading order in $\\alpha_s$ with the dispersion approach. Employing the method of regions, factorization of the $B \\to \\gamma^{\\ast}$ form factors is demonstrated explicitly, at one loop, for a space-like hard-collinear photon. The two-particle soft (end-point) contribution is shown to be suppressed by one power of $\\Lambda/m_b$, in the heavy quark limit, compared with the leading power contribution computed from QCD factorization. I further report the recent calculation on th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.09813","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":"1609.09813","created_at":"2026-05-18T01:03:33.302354+00:00"},{"alias_kind":"arxiv_version","alias_value":"1609.09813v1","created_at":"2026-05-18T01:03:33.302354+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.09813","created_at":"2026-05-18T01:03:33.302354+00:00"},{"alias_kind":"pith_short_12","alias_value":"LBOKDXVNFTVP","created_at":"2026-05-18T12:30:29.479603+00:00"},{"alias_kind":"pith_short_16","alias_value":"LBOKDXVNFTVPMUUN","created_at":"2026-05-18T12:30:29.479603+00:00"},{"alias_kind":"pith_short_8","alias_value":"LBOKDXVN","created_at":"2026-05-18T12:30:29.479603+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/LBOKDXVNFTVPMUUN5XSDFNPZHI","json":"https://pith.science/pith/LBOKDXVNFTVPMUUN5XSDFNPZHI.json","graph_json":"https://pith.science/api/pith-number/LBOKDXVNFTVPMUUN5XSDFNPZHI/graph.json","events_json":"https://pith.science/api/pith-number/LBOKDXVNFTVPMUUN5XSDFNPZHI/events.json","paper":"https://pith.science/paper/LBOKDXVN"},"agent_actions":{"view_html":"https://pith.science/pith/LBOKDXVNFTVPMUUN5XSDFNPZHI","download_json":"https://pith.science/pith/LBOKDXVNFTVPMUUN5XSDFNPZHI.json","view_paper":"https://pith.science/paper/LBOKDXVN","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1609.09813&json=true","fetch_graph":"https://pith.science/api/pith-number/LBOKDXVNFTVPMUUN5XSDFNPZHI/graph.json","fetch_events":"https://pith.science/api/pith-number/LBOKDXVNFTVPMUUN5XSDFNPZHI/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LBOKDXVNFTVPMUUN5XSDFNPZHI/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LBOKDXVNFTVPMUUN5XSDFNPZHI/action/storage_attestation","attest_author":"https://pith.science/pith/LBOKDXVNFTVPMUUN5XSDFNPZHI/action/author_attestation","sign_citation":"https://pith.science/pith/LBOKDXVNFTVPMUUN5XSDFNPZHI/action/citation_signature","submit_replication":"https://pith.science/pith/LBOKDXVNFTVPMUUN5XSDFNPZHI/action/replication_record"}},"created_at":"2026-05-18T01:03:33.302354+00:00","updated_at":"2026-05-18T01:03:33.302354+00:00"}