{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2007:FZHERFZXGOHYIQ3NVUKPM55KXV","short_pith_number":"pith:FZHERFZX","schema_version":"1.0","canonical_sha256":"2e4e489737338f84436dad14f677aabd55a3c67bf4b0ec310d699a89a35d0b7a","source":{"kind":"arxiv","id":"0711.1583","version":2},"attestation_state":"computed","paper":{"title":"SU(2) Symmetry and Conservation of Helicity for a Dirac Particle in a Static Magnetic Field at First Order","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"quant-ph","authors_text":"A. Albaid, M.S. Shikakhwa","submitted_at":"2007-11-10T10:54:06Z","abstract_excerpt":"We investigate the spin dynamics and the conservation of helicity in the first order $S-$matrix of a Dirac particle in any static magnetic field. We express the dynamical quantities using a coordinate system defined by the three mutually orthogonal vectors; the total momentum $\\mathbf{k}=\\mathbf{p_f}+\\mathbf{p_i}$, the momentum transfer $\\mathbf{q}=\\mathbf{p_f-p_i}$, and $\\mathbf{l}=\\mathbf{k\\times q}$. We show that this leads to an alternative symmetric description of the conservation of helicity in a static magnetic field at first order. In particular, we show that helicity conservation in t"},"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":"0711.1583","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2007-11-10T10:54:06Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"751d446c8615a38aa6960a6f2191a508191b088157848de1cf54e3c2a680527e","abstract_canon_sha256":"aeca4e6b177b5976046b9fdb046b6b934275d26219958b4407cdc33578fddc25"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:19:18.976996Z","signature_b64":"niQRuhTaNoaVX48H8J/LVDiH9k8ViLHMKFUgTw6TS8XMnxqAvfDec2SRjSnKgzbHeJ16dLzPQjJsqyU072P2DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2e4e489737338f84436dad14f677aabd55a3c67bf4b0ec310d699a89a35d0b7a","last_reissued_at":"2026-05-18T01:19:18.976584Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:19:18.976584Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"SU(2) Symmetry and Conservation of Helicity for a Dirac Particle in a Static Magnetic Field at First Order","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"quant-ph","authors_text":"A. Albaid, M.S. Shikakhwa","submitted_at":"2007-11-10T10:54:06Z","abstract_excerpt":"We investigate the spin dynamics and the conservation of helicity in the first order $S-$matrix of a Dirac particle in any static magnetic field. We express the dynamical quantities using a coordinate system defined by the three mutually orthogonal vectors; the total momentum $\\mathbf{k}=\\mathbf{p_f}+\\mathbf{p_i}$, the momentum transfer $\\mathbf{q}=\\mathbf{p_f-p_i}$, and $\\mathbf{l}=\\mathbf{k\\times q}$. We show that this leads to an alternative symmetric description of the conservation of helicity in a static magnetic field at first order. In particular, we show that helicity conservation in t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0711.1583","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":"0711.1583","created_at":"2026-05-18T01:19:18.976644+00:00"},{"alias_kind":"arxiv_version","alias_value":"0711.1583v2","created_at":"2026-05-18T01:19:18.976644+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0711.1583","created_at":"2026-05-18T01:19:18.976644+00:00"},{"alias_kind":"pith_short_12","alias_value":"FZHERFZXGOHY","created_at":"2026-05-18T12:25:55.427421+00:00"},{"alias_kind":"pith_short_16","alias_value":"FZHERFZXGOHYIQ3N","created_at":"2026-05-18T12:25:55.427421+00:00"},{"alias_kind":"pith_short_8","alias_value":"FZHERFZX","created_at":"2026-05-18T12:25:55.427421+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/FZHERFZXGOHYIQ3NVUKPM55KXV","json":"https://pith.science/pith/FZHERFZXGOHYIQ3NVUKPM55KXV.json","graph_json":"https://pith.science/api/pith-number/FZHERFZXGOHYIQ3NVUKPM55KXV/graph.json","events_json":"https://pith.science/api/pith-number/FZHERFZXGOHYIQ3NVUKPM55KXV/events.json","paper":"https://pith.science/paper/FZHERFZX"},"agent_actions":{"view_html":"https://pith.science/pith/FZHERFZXGOHYIQ3NVUKPM55KXV","download_json":"https://pith.science/pith/FZHERFZXGOHYIQ3NVUKPM55KXV.json","view_paper":"https://pith.science/paper/FZHERFZX","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0711.1583&json=true","fetch_graph":"https://pith.science/api/pith-number/FZHERFZXGOHYIQ3NVUKPM55KXV/graph.json","fetch_events":"https://pith.science/api/pith-number/FZHERFZXGOHYIQ3NVUKPM55KXV/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/FZHERFZXGOHYIQ3NVUKPM55KXV/action/timestamp_anchor","attest_storage":"https://pith.science/pith/FZHERFZXGOHYIQ3NVUKPM55KXV/action/storage_attestation","attest_author":"https://pith.science/pith/FZHERFZXGOHYIQ3NVUKPM55KXV/action/author_attestation","sign_citation":"https://pith.science/pith/FZHERFZXGOHYIQ3NVUKPM55KXV/action/citation_signature","submit_replication":"https://pith.science/pith/FZHERFZXGOHYIQ3NVUKPM55KXV/action/replication_record"}},"created_at":"2026-05-18T01:19:18.976644+00:00","updated_at":"2026-05-18T01:19:18.976644+00:00"}