{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:RPWCWBDQSBG4ZMOCH2OV37CTIQ","short_pith_number":"pith:RPWCWBDQ","schema_version":"1.0","canonical_sha256":"8bec2b0470904dccb1c23e9d5dfc534408d8ae713e48e1e68cb74b9713611163","source":{"kind":"arxiv","id":"1511.07477","version":1},"attestation_state":"computed","paper":{"title":"Weyl spinors and the helicity formalism","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.gen-ph","authors_text":"Bryan Larios Lopez, J.Lorenzo Diaz-Cruz, Jonathan Reyes Perez, O. Meza-Aldama","submitted_at":"2015-11-19T23:33:53Z","abstract_excerpt":"In this work we give a review of the original formulation of the relativistic wave equation for particles with spin one-half. Traditionally \\`a la Dirac, it's proposed that the ``square root'' of the Klein-Gordon (K-G) equation involves a 4 component (Dirac) spinor and in the non-relativistic limit it can be written as 2 equations for two 2 component spinors. On the other hand, there exists Weyl's formalism, in which one works from the beginning with 2 component Weyl spinors, which are the fundamental objects of the helicity formalism. In this work we rederive Weyl's equations directly, starti"},"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":"1511.07477","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.gen-ph","submitted_at":"2015-11-19T23:33:53Z","cross_cats_sorted":[],"title_canon_sha256":"d025d352f984a8d59038ceb100bc566afb992515236d5ea9d5d2301386415cdb","abstract_canon_sha256":"d12473f6a5912f5b70234ed8a31a58ad3876ee0296c52466726f8f4a5cc8fc55"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:26:04.708590Z","signature_b64":"AdJpqTGhe90eGicmqmEHJNj3zIXHtTldYyrsm81N+3JFkHEszwANDh6AVwwMKbJzAqd/maXQEGPO9Gqly0kzBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8bec2b0470904dccb1c23e9d5dfc534408d8ae713e48e1e68cb74b9713611163","last_reissued_at":"2026-05-18T01:26:04.708071Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:26:04.708071Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Weyl spinors and the helicity formalism","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.gen-ph","authors_text":"Bryan Larios Lopez, J.Lorenzo Diaz-Cruz, Jonathan Reyes Perez, O. Meza-Aldama","submitted_at":"2015-11-19T23:33:53Z","abstract_excerpt":"In this work we give a review of the original formulation of the relativistic wave equation for particles with spin one-half. Traditionally \\`a la Dirac, it's proposed that the ``square root'' of the Klein-Gordon (K-G) equation involves a 4 component (Dirac) spinor and in the non-relativistic limit it can be written as 2 equations for two 2 component spinors. On the other hand, there exists Weyl's formalism, in which one works from the beginning with 2 component Weyl spinors, which are the fundamental objects of the helicity formalism. In this work we rederive Weyl's equations directly, starti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.07477","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":"1511.07477","created_at":"2026-05-18T01:26:04.708154+00:00"},{"alias_kind":"arxiv_version","alias_value":"1511.07477v1","created_at":"2026-05-18T01:26:04.708154+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.07477","created_at":"2026-05-18T01:26:04.708154+00:00"},{"alias_kind":"pith_short_12","alias_value":"RPWCWBDQSBG4","created_at":"2026-05-18T12:29:39.896362+00:00"},{"alias_kind":"pith_short_16","alias_value":"RPWCWBDQSBG4ZMOC","created_at":"2026-05-18T12:29:39.896362+00:00"},{"alias_kind":"pith_short_8","alias_value":"RPWCWBDQ","created_at":"2026-05-18T12:29:39.896362+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/RPWCWBDQSBG4ZMOCH2OV37CTIQ","json":"https://pith.science/pith/RPWCWBDQSBG4ZMOCH2OV37CTIQ.json","graph_json":"https://pith.science/api/pith-number/RPWCWBDQSBG4ZMOCH2OV37CTIQ/graph.json","events_json":"https://pith.science/api/pith-number/RPWCWBDQSBG4ZMOCH2OV37CTIQ/events.json","paper":"https://pith.science/paper/RPWCWBDQ"},"agent_actions":{"view_html":"https://pith.science/pith/RPWCWBDQSBG4ZMOCH2OV37CTIQ","download_json":"https://pith.science/pith/RPWCWBDQSBG4ZMOCH2OV37CTIQ.json","view_paper":"https://pith.science/paper/RPWCWBDQ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1511.07477&json=true","fetch_graph":"https://pith.science/api/pith-number/RPWCWBDQSBG4ZMOCH2OV37CTIQ/graph.json","fetch_events":"https://pith.science/api/pith-number/RPWCWBDQSBG4ZMOCH2OV37CTIQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/RPWCWBDQSBG4ZMOCH2OV37CTIQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/RPWCWBDQSBG4ZMOCH2OV37CTIQ/action/storage_attestation","attest_author":"https://pith.science/pith/RPWCWBDQSBG4ZMOCH2OV37CTIQ/action/author_attestation","sign_citation":"https://pith.science/pith/RPWCWBDQSBG4ZMOCH2OV37CTIQ/action/citation_signature","submit_replication":"https://pith.science/pith/RPWCWBDQSBG4ZMOCH2OV37CTIQ/action/replication_record"}},"created_at":"2026-05-18T01:26:04.708154+00:00","updated_at":"2026-05-18T01:26:04.708154+00:00"}