{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:YFAVYIIBLTBHDLBZVDACN7FONC","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"a9214c21a48a99414d6f92368babaa93d95b2faefd6e93fae5c3a39b15e0f2f0","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2017-02-13T05:38:53Z","title_canon_sha256":"eb5db4fb885a9d29005cde547326ca4b46d5d4cc698a62fc9af005319fde2137"},"schema_version":"1.0","source":{"id":"1702.03637","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.03637","created_at":"2026-05-18T00:42:39Z"},{"alias_kind":"arxiv_version","alias_value":"1702.03637v2","created_at":"2026-05-18T00:42:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.03637","created_at":"2026-05-18T00:42:39Z"},{"alias_kind":"pith_short_12","alias_value":"YFAVYIIBLTBH","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_16","alias_value":"YFAVYIIBLTBHDLBZ","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_8","alias_value":"YFAVYIIB","created_at":"2026-05-18T12:31:56Z"}],"graph_snapshots":[{"event_id":"sha256:96385dd2d3b65e049c2ee62a3cb39bba5d0bb454f7d6fe8eaa63121d279203d5","target":"graph","created_at":"2026-05-18T00:42:39Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We calculate the two leading-twist transverse momentum dependent distribution functions of the pion meson, the unpolarized distribution $f_{1\\pi}(x,\\bm{k}^2_T)$ and the Boer-Mulders function $h_{1\\pi}^\\perp (x,\\bm{k}^2_T)$, using the pion wave functions derived from a light-cone approach. The evolution effect of the first $\\bm k_T$-moment of the pion Boer-Mulders function is studied by employing an approximate evolution kernel. Using the model resulting distributions, we predict the transverse momentum weighted $\\cos2\\phi$ azimuthal asymmetry in the unpolarized $\\pi^- p$ Drell-Yan process whic","authors_text":"Xiaoyu Wang, Zhengxian Wang, Zhun Lu","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2017-02-13T05:38:53Z","title":"Boer-Mulders function of pion meson and $q_T$-weighted $\\cos2\\phi$ asymmetry in the unpolarized $\\pi^- p$ Drell-Yan at COMPASS"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.03637","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:ce53fc6155428be4e4f356ac8f9b65ad15231172e018734179a04a62dff5d316","target":"record","created_at":"2026-05-18T00:42:39Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"a9214c21a48a99414d6f92368babaa93d95b2faefd6e93fae5c3a39b15e0f2f0","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2017-02-13T05:38:53Z","title_canon_sha256":"eb5db4fb885a9d29005cde547326ca4b46d5d4cc698a62fc9af005319fde2137"},"schema_version":"1.0","source":{"id":"1702.03637","kind":"arxiv","version":2}},"canonical_sha256":"c1415c21015cc271ac39a8c026fcae689697cf213d511b3793ecfe304a9b7ff4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c1415c21015cc271ac39a8c026fcae689697cf213d511b3793ecfe304a9b7ff4","first_computed_at":"2026-05-18T00:42:39.026701Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:42:39.026701Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qzHtpSDPfJDib3NvyBmhTM1tEO6MNvdX9iyFXaMBPDKH2jRgFfNVRGupPz7ImM0mfQpVOD7WB/rkIlc6+OO2Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:42:39.027232Z","signed_message":"canonical_sha256_bytes"},"source_id":"1702.03637","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ce53fc6155428be4e4f356ac8f9b65ad15231172e018734179a04a62dff5d316","sha256:96385dd2d3b65e049c2ee62a3cb39bba5d0bb454f7d6fe8eaa63121d279203d5"],"state_sha256":"5df9ee5ff2c6e806c1191ae0e4ee2b83cd42dd19cf38e037e22ec221a7bd3058"}