{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:ZTYK67AKGNHU3PLN2EQ4X2RTGH","short_pith_number":"pith:ZTYK67AK","schema_version":"1.0","canonical_sha256":"ccf0af7c0a334f4dbd6dd121cbea3331e3cc25e612a5a69be7fdd284016220eb","source":{"kind":"arxiv","id":"1303.3843","version":1},"attestation_state":"computed","paper":{"title":"Universality of the three-body Efimov parameter at narrow Feshbach resonances","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"cond-mat.quant-gas","authors_text":"Andrea Simoni, Andreas Trenkwalder, Giacomo Spagnolli, Giovanni Modugno, Giulia Semeghini, Manuele Landini, Marco Fattori, Massimo Inguscio, Sanjukta Roy","submitted_at":"2013-03-15T18:15:38Z","abstract_excerpt":"We measure the critical scattering length for the appearance of the first three-body bound state, or Efimov three-body parameter, at seven different Feshbach resonances in ultracold 39K atoms. We study both intermediate and narrow resonances, where the three-body spectrum is expected to be determined by the non-universal coupling of two scattering channels. We observe instead approximately the same universal relation of the three-body parameter with the two-body van der Waals radius already found for broader resonances, which can be modeled with a single channel. This unexpected observation su"},"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":"1303.3843","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2013-03-15T18:15:38Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"eed198597505e94386dbf8b8e63f831d5c47389436da648c00600cf8c4217d18","abstract_canon_sha256":"86cff944ce8da880011ff87dff35c95462929d4c37164a13f752490b73f71046"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:14:27.940212Z","signature_b64":"YNv6cj/efMpwBEoqOSfQSIdrlPrvCQVT7VV56NHMzU4TBoQAMrj5c5flB3tlg0gfME2bHj0MoNb/PM+bBUrnCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ccf0af7c0a334f4dbd6dd121cbea3331e3cc25e612a5a69be7fdd284016220eb","last_reissued_at":"2026-05-18T03:14:27.939571Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:14:27.939571Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Universality of the three-body Efimov parameter at narrow Feshbach resonances","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"cond-mat.quant-gas","authors_text":"Andrea Simoni, Andreas Trenkwalder, Giacomo Spagnolli, Giovanni Modugno, Giulia Semeghini, Manuele Landini, Marco Fattori, Massimo Inguscio, Sanjukta Roy","submitted_at":"2013-03-15T18:15:38Z","abstract_excerpt":"We measure the critical scattering length for the appearance of the first three-body bound state, or Efimov three-body parameter, at seven different Feshbach resonances in ultracold 39K atoms. We study both intermediate and narrow resonances, where the three-body spectrum is expected to be determined by the non-universal coupling of two scattering channels. We observe instead approximately the same universal relation of the three-body parameter with the two-body van der Waals radius already found for broader resonances, which can be modeled with a single channel. This unexpected observation su"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.3843","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":"1303.3843","created_at":"2026-05-18T03:14:27.939649+00:00"},{"alias_kind":"arxiv_version","alias_value":"1303.3843v1","created_at":"2026-05-18T03:14:27.939649+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.3843","created_at":"2026-05-18T03:14:27.939649+00:00"},{"alias_kind":"pith_short_12","alias_value":"ZTYK67AKGNHU","created_at":"2026-05-18T12:28:09.283467+00:00"},{"alias_kind":"pith_short_16","alias_value":"ZTYK67AKGNHU3PLN","created_at":"2026-05-18T12:28:09.283467+00:00"},{"alias_kind":"pith_short_8","alias_value":"ZTYK67AK","created_at":"2026-05-18T12:28:09.283467+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/ZTYK67AKGNHU3PLN2EQ4X2RTGH","json":"https://pith.science/pith/ZTYK67AKGNHU3PLN2EQ4X2RTGH.json","graph_json":"https://pith.science/api/pith-number/ZTYK67AKGNHU3PLN2EQ4X2RTGH/graph.json","events_json":"https://pith.science/api/pith-number/ZTYK67AKGNHU3PLN2EQ4X2RTGH/events.json","paper":"https://pith.science/paper/ZTYK67AK"},"agent_actions":{"view_html":"https://pith.science/pith/ZTYK67AKGNHU3PLN2EQ4X2RTGH","download_json":"https://pith.science/pith/ZTYK67AKGNHU3PLN2EQ4X2RTGH.json","view_paper":"https://pith.science/paper/ZTYK67AK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1303.3843&json=true","fetch_graph":"https://pith.science/api/pith-number/ZTYK67AKGNHU3PLN2EQ4X2RTGH/graph.json","fetch_events":"https://pith.science/api/pith-number/ZTYK67AKGNHU3PLN2EQ4X2RTGH/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ZTYK67AKGNHU3PLN2EQ4X2RTGH/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ZTYK67AKGNHU3PLN2EQ4X2RTGH/action/storage_attestation","attest_author":"https://pith.science/pith/ZTYK67AKGNHU3PLN2EQ4X2RTGH/action/author_attestation","sign_citation":"https://pith.science/pith/ZTYK67AKGNHU3PLN2EQ4X2RTGH/action/citation_signature","submit_replication":"https://pith.science/pith/ZTYK67AKGNHU3PLN2EQ4X2RTGH/action/replication_record"}},"created_at":"2026-05-18T03:14:27.939649+00:00","updated_at":"2026-05-18T03:14:27.939649+00:00"}