{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:OOF66CPVFPISIPLR4JITZ7JJXA","short_pith_number":"pith:OOF66CPV","schema_version":"1.0","canonical_sha256":"738bef09f52bd1243d71e2513cfd29b80373ca40de8f18d0339db7153c635153","source":{"kind":"arxiv","id":"1101.2702","version":2},"attestation_state":"computed","paper":{"title":"Single spin asymmetry in $\\pi p$ Drell-Yan process","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Bo-Qiang Ma, Jun She, Zhun Lu","submitted_at":"2011-01-14T01:06:48Z","abstract_excerpt":"We study the single spin asymmetries for the $\\pi p^\\uparrow\\rightarrow\\mu^+\\mu^-X$ process. We consider the asymmetries contributed by the coupling of the Boer-Mulders function with the transversity distribution and the pretzelosity distribution, characterized by the $\\sin(\\phi+\\phi_S)$ and $\\sin(3\\phi-\\phi_S)$ azimuthal angular dependence, respectively. We estimate the magnitude of these asymmetries at COMPASS by using proper weighting functions. We find that the $\\sin(\\phi+\\phi_S)$ asymmetry is of the size of a few percent and can be measured through the experiment. The $\\sin(3\\phi-\\phi_S)$"},"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":"1101.2702","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-01-14T01:06:48Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"5ab21baee8cc8d07d986a455139adc8ae2f8e42f034cb39c273e6edb584841cf","abstract_canon_sha256":"2f2ae34db4ad89c138b45f55828c547dbf0cae2d1e3a88741297155ca31fa87b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:28:38.873391Z","signature_b64":"xZLdceQDa2P3br47AjAdG/DxyrfCoFCHh5Ed1m+cpsJxNXn0HBurd/JkrlGwPOQuzb/mIC2EBBphrXKaiBTHAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"738bef09f52bd1243d71e2513cfd29b80373ca40de8f18d0339db7153c635153","last_reissued_at":"2026-05-18T04:28:38.872956Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:28:38.872956Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Single spin asymmetry in $\\pi p$ Drell-Yan process","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Bo-Qiang Ma, Jun She, Zhun Lu","submitted_at":"2011-01-14T01:06:48Z","abstract_excerpt":"We study the single spin asymmetries for the $\\pi p^\\uparrow\\rightarrow\\mu^+\\mu^-X$ process. We consider the asymmetries contributed by the coupling of the Boer-Mulders function with the transversity distribution and the pretzelosity distribution, characterized by the $\\sin(\\phi+\\phi_S)$ and $\\sin(3\\phi-\\phi_S)$ azimuthal angular dependence, respectively. We estimate the magnitude of these asymmetries at COMPASS by using proper weighting functions. We find that the $\\sin(\\phi+\\phi_S)$ asymmetry is of the size of a few percent and can be measured through the experiment. The $\\sin(3\\phi-\\phi_S)$"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.2702","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":"1101.2702","created_at":"2026-05-18T04:28:38.873021+00:00"},{"alias_kind":"arxiv_version","alias_value":"1101.2702v2","created_at":"2026-05-18T04:28:38.873021+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.2702","created_at":"2026-05-18T04:28:38.873021+00:00"},{"alias_kind":"pith_short_12","alias_value":"OOF66CPVFPIS","created_at":"2026-05-18T12:26:37.096874+00:00"},{"alias_kind":"pith_short_16","alias_value":"OOF66CPVFPISIPLR","created_at":"2026-05-18T12:26:37.096874+00:00"},{"alias_kind":"pith_short_8","alias_value":"OOF66CPV","created_at":"2026-05-18T12:26:37.096874+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/OOF66CPVFPISIPLR4JITZ7JJXA","json":"https://pith.science/pith/OOF66CPVFPISIPLR4JITZ7JJXA.json","graph_json":"https://pith.science/api/pith-number/OOF66CPVFPISIPLR4JITZ7JJXA/graph.json","events_json":"https://pith.science/api/pith-number/OOF66CPVFPISIPLR4JITZ7JJXA/events.json","paper":"https://pith.science/paper/OOF66CPV"},"agent_actions":{"view_html":"https://pith.science/pith/OOF66CPVFPISIPLR4JITZ7JJXA","download_json":"https://pith.science/pith/OOF66CPVFPISIPLR4JITZ7JJXA.json","view_paper":"https://pith.science/paper/OOF66CPV","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1101.2702&json=true","fetch_graph":"https://pith.science/api/pith-number/OOF66CPVFPISIPLR4JITZ7JJXA/graph.json","fetch_events":"https://pith.science/api/pith-number/OOF66CPVFPISIPLR4JITZ7JJXA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/OOF66CPVFPISIPLR4JITZ7JJXA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/OOF66CPVFPISIPLR4JITZ7JJXA/action/storage_attestation","attest_author":"https://pith.science/pith/OOF66CPVFPISIPLR4JITZ7JJXA/action/author_attestation","sign_citation":"https://pith.science/pith/OOF66CPVFPISIPLR4JITZ7JJXA/action/citation_signature","submit_replication":"https://pith.science/pith/OOF66CPVFPISIPLR4JITZ7JJXA/action/replication_record"}},"created_at":"2026-05-18T04:28:38.873021+00:00","updated_at":"2026-05-18T04:28:38.873021+00:00"}