{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:25USWVXDZKSGU3TVB5M346ARP6","short_pith_number":"pith:25USWVXD","schema_version":"1.0","canonical_sha256":"d7692b56e3caa46a6e750f59be78117f88d993758d40f06d534068a5b38b5b1e","source":{"kind":"arxiv","id":"1609.02188","version":2},"attestation_state":"computed","paper":{"title":"Axial Vector $Z'$ and Anomaly Cancellation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Ahmed Ismail, James Unwin, Kuo-Hsing Tsao, Wai-Yee Keung","submitted_at":"2016-09-07T20:51:12Z","abstract_excerpt":"Whilst the prospect of new $Z'$ gauge bosons with only axial couplings to the Standard Model (SM) fermions is widely discussed, examples of anomaly-free renormalisable models are lacking in the literature. We look to remedy this by constructing several motivated examples. Specifically, we consider axial vectors which couple universally to all SM fermions, as well as those which are generation-specific, leptophilic, and leptophobic. Anomaly cancellation typically requires the presence of new coloured and charged chiral fermions, and we argue that in a large class of models masses of these new s"},"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":"1609.02188","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-09-07T20:51:12Z","cross_cats_sorted":[],"title_canon_sha256":"d4ab466e487721b81a8e50341f6273f17417ca40af52be656b71805b22bc9ce2","abstract_canon_sha256":"48a1b4aec9a67e05961e26fce82d654034f84e6b29d8ae7e401b4b06b37216b2"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:45:34.627523Z","signature_b64":"pSC87mgMvVK47XjZ0XBEUxMVcwKppVY+fQN1wZy7XfAjLpzdfJxa9l8pIrOkmxq7Rdchc2dH85GjzdBsv7dRCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d7692b56e3caa46a6e750f59be78117f88d993758d40f06d534068a5b38b5b1e","last_reissued_at":"2026-05-18T00:45:34.626620Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:45:34.626620Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Axial Vector $Z'$ and Anomaly Cancellation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Ahmed Ismail, James Unwin, Kuo-Hsing Tsao, Wai-Yee Keung","submitted_at":"2016-09-07T20:51:12Z","abstract_excerpt":"Whilst the prospect of new $Z'$ gauge bosons with only axial couplings to the Standard Model (SM) fermions is widely discussed, examples of anomaly-free renormalisable models are lacking in the literature. We look to remedy this by constructing several motivated examples. Specifically, we consider axial vectors which couple universally to all SM fermions, as well as those which are generation-specific, leptophilic, and leptophobic. Anomaly cancellation typically requires the presence of new coloured and charged chiral fermions, and we argue that in a large class of models masses of these new s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.02188","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1609.02188","created_at":"2026-05-18T00:45:34.626710+00:00"},{"alias_kind":"arxiv_version","alias_value":"1609.02188v2","created_at":"2026-05-18T00:45:34.626710+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.02188","created_at":"2026-05-18T00:45:34.626710+00:00"},{"alias_kind":"pith_short_12","alias_value":"25USWVXDZKSG","created_at":"2026-05-18T12:29:52.810259+00:00"},{"alias_kind":"pith_short_16","alias_value":"25USWVXDZKSGU3TV","created_at":"2026-05-18T12:29:52.810259+00:00"},{"alias_kind":"pith_short_8","alias_value":"25USWVXD","created_at":"2026-05-18T12:29:52.810259+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2512.20825","citing_title":"Irreducible Constraints on Hadronically Interacting Sub-GeV Dark Matter","ref_index":65,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/25USWVXDZKSGU3TVB5M346ARP6","json":"https://pith.science/pith/25USWVXDZKSGU3TVB5M346ARP6.json","graph_json":"https://pith.science/api/pith-number/25USWVXDZKSGU3TVB5M346ARP6/graph.json","events_json":"https://pith.science/api/pith-number/25USWVXDZKSGU3TVB5M346ARP6/events.json","paper":"https://pith.science/paper/25USWVXD"},"agent_actions":{"view_html":"https://pith.science/pith/25USWVXDZKSGU3TVB5M346ARP6","download_json":"https://pith.science/pith/25USWVXDZKSGU3TVB5M346ARP6.json","view_paper":"https://pith.science/paper/25USWVXD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1609.02188&json=true","fetch_graph":"https://pith.science/api/pith-number/25USWVXDZKSGU3TVB5M346ARP6/graph.json","fetch_events":"https://pith.science/api/pith-number/25USWVXDZKSGU3TVB5M346ARP6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/25USWVXDZKSGU3TVB5M346ARP6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/25USWVXDZKSGU3TVB5M346ARP6/action/storage_attestation","attest_author":"https://pith.science/pith/25USWVXDZKSGU3TVB5M346ARP6/action/author_attestation","sign_citation":"https://pith.science/pith/25USWVXDZKSGU3TVB5M346ARP6/action/citation_signature","submit_replication":"https://pith.science/pith/25USWVXDZKSGU3TVB5M346ARP6/action/replication_record"}},"created_at":"2026-05-18T00:45:34.626710+00:00","updated_at":"2026-05-18T00:45:34.626710+00:00"}