{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:XJ4QXK25RQNH6RWPUCOZEOFCR3","short_pith_number":"pith:XJ4QXK25","canonical_record":{"source":{"id":"1209.6268","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-09-27T16:17:38Z","cross_cats_sorted":[],"title_canon_sha256":"048111cd6ccf58debbfdc52efe0861e6fb7bd39f0cb8a34dcad97c7915fb8e48","abstract_canon_sha256":"98fd756917e2cc04ff298509d6c34f1498764abc1d19ec058568c2a7d798d255"},"schema_version":"1.0"},"canonical_sha256":"ba790bab5d8c1a7f46cfa09d9238a28ef448cf62b50939c2ba84cd303412ff61","source":{"kind":"arxiv","id":"1209.6268","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.6268","created_at":"2026-05-18T01:54:13Z"},{"alias_kind":"arxiv_version","alias_value":"1209.6268v2","created_at":"2026-05-18T01:54:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.6268","created_at":"2026-05-18T01:54:13Z"},{"alias_kind":"pith_short_12","alias_value":"XJ4QXK25RQNH","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_16","alias_value":"XJ4QXK25RQNH6RWP","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_8","alias_value":"XJ4QXK25","created_at":"2026-05-18T12:27:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:XJ4QXK25RQNH6RWPUCOZEOFCR3","target":"record","payload":{"canonical_record":{"source":{"id":"1209.6268","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-09-27T16:17:38Z","cross_cats_sorted":[],"title_canon_sha256":"048111cd6ccf58debbfdc52efe0861e6fb7bd39f0cb8a34dcad97c7915fb8e48","abstract_canon_sha256":"98fd756917e2cc04ff298509d6c34f1498764abc1d19ec058568c2a7d798d255"},"schema_version":"1.0"},"canonical_sha256":"ba790bab5d8c1a7f46cfa09d9238a28ef448cf62b50939c2ba84cd303412ff61","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:54:13.251418Z","signature_b64":"9MFCvluDeAJJw8L2LdSwPt9YpywPsvNiA4OBEZseuLLeVhPM54Jw0FzgLGyj2uXtJ7L5QpUazm6/jqCe9OayBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ba790bab5d8c1a7f46cfa09d9238a28ef448cf62b50939c2ba84cd303412ff61","last_reissued_at":"2026-05-18T01:54:13.250907Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:54:13.250907Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1209.6268","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:54:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5SrB9aSb+0vRbT6E1R+hkChs5t4zjbeEU4SteSSgH0HA3seaVpV5rrYLsWjIEK2nU4srpB+OVEU3iOb0HId0Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T12:09:06.045475Z"},"content_sha256":"4cb7c33b387c26d12d0ef6e275d85fc632494d581fcc19ae7cdde5b960478181","schema_version":"1.0","event_id":"sha256:4cb7c33b387c26d12d0ef6e275d85fc632494d581fcc19ae7cdde5b960478181"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:XJ4QXK25RQNH6RWPUCOZEOFCR3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Study of the anomalous cross-section lineshape of e^+e^-\\to D\\bar D at \\psi(3770) with an effective field theory","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Guo-Ying Chen, Qiang Zhao","submitted_at":"2012-09-27T16:17:38Z","abstract_excerpt":"We study the anomalous cross-section lineshape of $e^+e^-\\rightarrow D\\bar D$ with an effective field theory. Near the threshold, most of the $D\\bar D$ pairs are from the decay of $\\psi(3770)$. Taking into account the fact that the nonresonance background is dominated by the $\\psi(2S)$ transition, the produced $D\\bar D$ pair can undergo final-state interactions before the pair is detected. We propose an effective field theory for the low-energy $D\\bar D$ interactions to describe these final-state interactions and find that the anomalous lineshape of the $D\\bar D$ cross section observed by the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.6268","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:54:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mMiYXH2DdLPwdTdC9WH06WtjgzXewzi+SeeiomNVnsLIla2PS90wqgsPBFSTIEnxUGwVt406ilzOPkO8hPNpCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T12:09:06.045950Z"},"content_sha256":"c88bfcc13237754058e72aa551450aabb9882c583671da7fa5dfd4425fb853fb","schema_version":"1.0","event_id":"sha256:c88bfcc13237754058e72aa551450aabb9882c583671da7fa5dfd4425fb853fb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XJ4QXK25RQNH6RWPUCOZEOFCR3/bundle.json","state_url":"https://pith.science/pith/XJ4QXK25RQNH6RWPUCOZEOFCR3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XJ4QXK25RQNH6RWPUCOZEOFCR3/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-16T12:09:06Z","links":{"resolver":"https://pith.science/pith/XJ4QXK25RQNH6RWPUCOZEOFCR3","bundle":"https://pith.science/pith/XJ4QXK25RQNH6RWPUCOZEOFCR3/bundle.json","state":"https://pith.science/pith/XJ4QXK25RQNH6RWPUCOZEOFCR3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XJ4QXK25RQNH6RWPUCOZEOFCR3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:XJ4QXK25RQNH6RWPUCOZEOFCR3","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":"98fd756917e2cc04ff298509d6c34f1498764abc1d19ec058568c2a7d798d255","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-09-27T16:17:38Z","title_canon_sha256":"048111cd6ccf58debbfdc52efe0861e6fb7bd39f0cb8a34dcad97c7915fb8e48"},"schema_version":"1.0","source":{"id":"1209.6268","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.6268","created_at":"2026-05-18T01:54:13Z"},{"alias_kind":"arxiv_version","alias_value":"1209.6268v2","created_at":"2026-05-18T01:54:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.6268","created_at":"2026-05-18T01:54:13Z"},{"alias_kind":"pith_short_12","alias_value":"XJ4QXK25RQNH","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_16","alias_value":"XJ4QXK25RQNH6RWP","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_8","alias_value":"XJ4QXK25","created_at":"2026-05-18T12:27:27Z"}],"graph_snapshots":[{"event_id":"sha256:c88bfcc13237754058e72aa551450aabb9882c583671da7fa5dfd4425fb853fb","target":"graph","created_at":"2026-05-18T01:54:13Z","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 study the anomalous cross-section lineshape of $e^+e^-\\rightarrow D\\bar D$ with an effective field theory. Near the threshold, most of the $D\\bar D$ pairs are from the decay of $\\psi(3770)$. Taking into account the fact that the nonresonance background is dominated by the $\\psi(2S)$ transition, the produced $D\\bar D$ pair can undergo final-state interactions before the pair is detected. We propose an effective field theory for the low-energy $D\\bar D$ interactions to describe these final-state interactions and find that the anomalous lineshape of the $D\\bar D$ cross section observed by the ","authors_text":"Guo-Ying Chen, Qiang Zhao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-09-27T16:17:38Z","title":"Study of the anomalous cross-section lineshape of e^+e^-\\to D\\bar D at \\psi(3770) with an effective field theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.6268","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":"sha256:4cb7c33b387c26d12d0ef6e275d85fc632494d581fcc19ae7cdde5b960478181","target":"record","created_at":"2026-05-18T01:54:13Z","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":"98fd756917e2cc04ff298509d6c34f1498764abc1d19ec058568c2a7d798d255","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-09-27T16:17:38Z","title_canon_sha256":"048111cd6ccf58debbfdc52efe0861e6fb7bd39f0cb8a34dcad97c7915fb8e48"},"schema_version":"1.0","source":{"id":"1209.6268","kind":"arxiv","version":2}},"canonical_sha256":"ba790bab5d8c1a7f46cfa09d9238a28ef448cf62b50939c2ba84cd303412ff61","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ba790bab5d8c1a7f46cfa09d9238a28ef448cf62b50939c2ba84cd303412ff61","first_computed_at":"2026-05-18T01:54:13.250907Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:54:13.250907Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9MFCvluDeAJJw8L2LdSwPt9YpywPsvNiA4OBEZseuLLeVhPM54Jw0FzgLGyj2uXtJ7L5QpUazm6/jqCe9OayBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:54:13.251418Z","signed_message":"canonical_sha256_bytes"},"source_id":"1209.6268","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4cb7c33b387c26d12d0ef6e275d85fc632494d581fcc19ae7cdde5b960478181","sha256:c88bfcc13237754058e72aa551450aabb9882c583671da7fa5dfd4425fb853fb"],"state_sha256":"a958938f91582e58531282e588303d4cedc19aec52422bd8bc7e54e07a59e412"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SnLzddYK2lHqH3OCWZj0Vd546y5PCzNh9mYcr3xjbf5mgt0FCaWIfgsLzST5QGNxbWa7hWRISFxC9ImNnCSNAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T12:09:06.049923Z","bundle_sha256":"ffff7b080ba585410d8e2e8eb5e49939348d8fc45392aa0e19310be7ba0113cf"}}