{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:AS4FNQKYVVVYJIU3DGQAB46X4Z","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":"df7dc5e25f3067e41cce7fcf947e1a5d9db6fe082964024b8585865648832c15","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-10-30T22:22:30Z","title_canon_sha256":"0554c622b3283a585237bdac9cda335dbdb805d6f6884187b3c467305240d340"},"schema_version":"1.0","source":{"id":"1310.8337","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.8337","created_at":"2026-05-18T02:54:37Z"},{"alias_kind":"arxiv_version","alias_value":"1310.8337v4","created_at":"2026-05-18T02:54:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.8337","created_at":"2026-05-18T02:54:37Z"},{"alias_kind":"pith_short_12","alias_value":"AS4FNQKYVVVY","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_16","alias_value":"AS4FNQKYVVVYJIU3","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_8","alias_value":"AS4FNQKY","created_at":"2026-05-18T12:27:38Z"}],"graph_snapshots":[{"event_id":"sha256:ece9333922919c4aec58dd3d03a6ba546a48ffea875539a9763df028edd758e3","target":"graph","created_at":"2026-05-18T02:54:37Z","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 exotic $bc\\bar{q}\\bar{q}$, $bc\\bar{s}\\bar{s}$ and $qc\\bar{q}\\bar{b}$, $sc\\bar{s}\\bar{b}$ systems by constructing the corresponding tetraquark currents with $J^P=0^+$ and $1^+$. After investigating the two-point correlation functions and the spectral densities, we perform QCD sum rule analysis and extract the masses of these open-flavor tetraquark states. Our results indicate that the masses of both the scalar and axial vector tetraquark states are about $7.1-7.2$ GeV for the $bc\\bar{q}\\bar{q}$ system and $7.2-7.3$ GeV for the $bc\\bar{s}\\bar{s}$ system. For the $qc\\bar{q}\\bar{b}$ t","authors_text":"Shi-Lin Zhu, T. G. Steele, Wei Chen","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-10-30T22:22:30Z","title":"Exotic open-flavor $bc\\bar{q}\\bar{q}$, $bc\\bar{s}\\bar{s}$ and $qc\\bar{q}\\bar{b}$, $sc\\bar{s}\\bar{b}$ tetraquark states"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.8337","kind":"arxiv","version":4},"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":"sha256:6078e4db32d56fd7481bb0b983a47242cc47db4b33606f61f15c31ff888bfa88","target":"record","created_at":"2026-05-18T02:54:37Z","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":"df7dc5e25f3067e41cce7fcf947e1a5d9db6fe082964024b8585865648832c15","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-10-30T22:22:30Z","title_canon_sha256":"0554c622b3283a585237bdac9cda335dbdb805d6f6884187b3c467305240d340"},"schema_version":"1.0","source":{"id":"1310.8337","kind":"arxiv","version":4}},"canonical_sha256":"04b856c158ad6b84a29b19a000f3d7e6699f8844e549c818df2cd7b1acf2453a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"04b856c158ad6b84a29b19a000f3d7e6699f8844e549c818df2cd7b1acf2453a","first_computed_at":"2026-05-18T02:54:37.756246Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:54:37.756246Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZK8ADuEnQHAUBzvR/BFPH6mwvy5m1g9+MAVG5cXgUAY0GvddgwXoHlZcMLgs+PALtFABCgzRCf8ylRxaOtPyAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:54:37.756715Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.8337","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6078e4db32d56fd7481bb0b983a47242cc47db4b33606f61f15c31ff888bfa88","sha256:ece9333922919c4aec58dd3d03a6ba546a48ffea875539a9763df028edd758e3"],"state_sha256":"ab6502409a8eb61cd4585be395089927a26ba31453692e31dc4d55519a565f05"}