{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:JW63I2LNRZUOYYFGD6JXAIQYCM","short_pith_number":"pith:JW63I2LN","schema_version":"1.0","canonical_sha256":"4dbdb4696d8e68ec60a61f9370221813074d5cfdd5048a4305472e832d863eb4","source":{"kind":"arxiv","id":"2102.12818","version":2},"attestation_state":"computed","paper":{"title":"Form-factor-independent test of lepton universality in semileptonic heavy meson and baryon decays","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Chien-Thang Tran, J\\\"urgen G. K\\\"orner, Mikhail A. Ivanov, Pietro Santorelli, Stefan Groote, Valery E. Lyubovitskij","submitted_at":"2021-02-25T12:35:27Z","abstract_excerpt":"In the semileptonic decays of heavy mesons and baryons the lepton-mass dependence factors out in the quadratic $\\cos^2\\theta$ coefficient of the differential $\\cos\\theta$ distribution. We call the corresponding normalized coefficient the convexity parameter. This observation opens the path to a test of lepton universality in semileptonic heavy meson and baryon decays that is independent of form-factor effects. By projecting out the quadratic rate coefficient, dividing out the lepton-mass-dependent factor and restricting the phase space integration to the $\\tau$ lepton phase space, one can defi"},"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":"2102.12818","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2021-02-25T12:35:27Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"40bd1172408a822081cf62d15eb2dcfd5c83bda5e521813aa772bd5bf117be08","abstract_canon_sha256":"72e228668f37d3c2fa1c384046fd9f1a282d07c6af5efc1e6b332a93adbdc882"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:41:15.917068Z","signature_b64":"fgl71iCyNuSmbsIS0kjsCk0HF7kDYL+ujEzqFsxKix50HpV61XIWha0KlKCoiJju01UkP1gx+8gf6nhoFLi2CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4dbdb4696d8e68ec60a61f9370221813074d5cfdd5048a4305472e832d863eb4","last_reissued_at":"2026-07-05T02:41:15.916570Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:41:15.916570Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Form-factor-independent test of lepton universality in semileptonic heavy meson and baryon decays","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Chien-Thang Tran, J\\\"urgen G. K\\\"orner, Mikhail A. Ivanov, Pietro Santorelli, Stefan Groote, Valery E. Lyubovitskij","submitted_at":"2021-02-25T12:35:27Z","abstract_excerpt":"In the semileptonic decays of heavy mesons and baryons the lepton-mass dependence factors out in the quadratic $\\cos^2\\theta$ coefficient of the differential $\\cos\\theta$ distribution. We call the corresponding normalized coefficient the convexity parameter. This observation opens the path to a test of lepton universality in semileptonic heavy meson and baryon decays that is independent of form-factor effects. By projecting out the quadratic rate coefficient, dividing out the lepton-mass-dependent factor and restricting the phase space integration to the $\\tau$ lepton phase space, one can defi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.12818","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2102.12818/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2102.12818","created_at":"2026-07-05T02:41:15.916632+00:00"},{"alias_kind":"arxiv_version","alias_value":"2102.12818v2","created_at":"2026-07-05T02:41:15.916632+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.12818","created_at":"2026-07-05T02:41:15.916632+00:00"},{"alias_kind":"pith_short_12","alias_value":"JW63I2LNRZUO","created_at":"2026-07-05T02:41:15.916632+00:00"},{"alias_kind":"pith_short_16","alias_value":"JW63I2LNRZUOYYFG","created_at":"2026-07-05T02:41:15.916632+00:00"},{"alias_kind":"pith_short_8","alias_value":"JW63I2LN","created_at":"2026-07-05T02:41:15.916632+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2506.23372","citing_title":"Probing the ATOMKI X17 vector boson using Dalitz decays $V\\to Pe^+e^-$","ref_index":45,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/JW63I2LNRZUOYYFGD6JXAIQYCM","json":"https://pith.science/pith/JW63I2LNRZUOYYFGD6JXAIQYCM.json","graph_json":"https://pith.science/api/pith-number/JW63I2LNRZUOYYFGD6JXAIQYCM/graph.json","events_json":"https://pith.science/api/pith-number/JW63I2LNRZUOYYFGD6JXAIQYCM/events.json","paper":"https://pith.science/paper/JW63I2LN"},"agent_actions":{"view_html":"https://pith.science/pith/JW63I2LNRZUOYYFGD6JXAIQYCM","download_json":"https://pith.science/pith/JW63I2LNRZUOYYFGD6JXAIQYCM.json","view_paper":"https://pith.science/paper/JW63I2LN","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2102.12818&json=true","fetch_graph":"https://pith.science/api/pith-number/JW63I2LNRZUOYYFGD6JXAIQYCM/graph.json","fetch_events":"https://pith.science/api/pith-number/JW63I2LNRZUOYYFGD6JXAIQYCM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/JW63I2LNRZUOYYFGD6JXAIQYCM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/JW63I2LNRZUOYYFGD6JXAIQYCM/action/storage_attestation","attest_author":"https://pith.science/pith/JW63I2LNRZUOYYFGD6JXAIQYCM/action/author_attestation","sign_citation":"https://pith.science/pith/JW63I2LNRZUOYYFGD6JXAIQYCM/action/citation_signature","submit_replication":"https://pith.science/pith/JW63I2LNRZUOYYFGD6JXAIQYCM/action/replication_record"}},"created_at":"2026-07-05T02:41:15.916632+00:00","updated_at":"2026-07-05T02:41:15.916632+00:00"}