{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1993:WQBE6TJCIXK7XJD5MKV5PZJXMU","short_pith_number":"pith:WQBE6TJC","canonical_record":{"source":{"id":"hep-ph/9307278","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1993-07-16T01:19:42Z","cross_cats_sorted":[],"title_canon_sha256":"13082a5d058069c5d00e5d46427a45e171bc4d49b371115a74bef257706895e1","abstract_canon_sha256":"aec349dc51d3c0afa6861eefa3074fb8feeb076f1749701e2dadef2ae8f701d6"},"schema_version":"1.0"},"canonical_sha256":"b4024f4d2245d5fba47d62abd7e537652ff5724f1e9a78fc7a0bd311d37e6673","source":{"kind":"arxiv","id":"hep-ph/9307278","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9307278","created_at":"2026-05-18T01:09:17Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9307278v1","created_at":"2026-05-18T01:09:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9307278","created_at":"2026-05-18T01:09:17Z"},{"alias_kind":"pith_short_12","alias_value":"WQBE6TJCIXK7","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_16","alias_value":"WQBE6TJCIXK7XJD5","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_8","alias_value":"WQBE6TJC","created_at":"2026-05-18T12:25:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1993:WQBE6TJCIXK7XJD5MKV5PZJXMU","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/9307278","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1993-07-16T01:19:42Z","cross_cats_sorted":[],"title_canon_sha256":"13082a5d058069c5d00e5d46427a45e171bc4d49b371115a74bef257706895e1","abstract_canon_sha256":"aec349dc51d3c0afa6861eefa3074fb8feeb076f1749701e2dadef2ae8f701d6"},"schema_version":"1.0"},"canonical_sha256":"b4024f4d2245d5fba47d62abd7e537652ff5724f1e9a78fc7a0bd311d37e6673","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:09:17.053190Z","signature_b64":"veLFhjDWNGVzy/LPEoY/MA+SGtiixT8JJzri19VI5ADhaNNBYZYeyBnxE7MVGjbpViuKA1k7HH35YJTn3mnRBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b4024f4d2245d5fba47d62abd7e537652ff5724f1e9a78fc7a0bd311d37e6673","last_reissued_at":"2026-05-18T01:09:17.052600Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:09:17.052600Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/9307278","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:09:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RbHtTfDTUBbfIO8teWtuH2tzvi3LVJiJPDGU4snDZxS735qRHywNJONovJK9I1QsSaFMb7isJQ+OAmycWeM/BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T06:06:51.330557Z"},"content_sha256":"199de0613a587c9a9feebf5dbb36824afd95c93456410912deec082279a4df26","schema_version":"1.0","event_id":"sha256:199de0613a587c9a9feebf5dbb36824afd95c93456410912deec082279a4df26"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1993:WQBE6TJCIXK7XJD5MKV5PZJXMU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dynamical zeros in neutrino-electron elastic scattering at leading order","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"F.J. Botella, J. Bernab\\'eu, J. Pe\\~narrocha, J. Segura","submitted_at":"1993-07-16T01:19:42Z","abstract_excerpt":"We show the existence of dynamical zeros in the helicity amplitudes for neutrino-electron elastic scattering at lowest order in the standard theory. In particular, the $\\lambda=1/2$ non-flip electron helicity amplitude in the electron antineutrino process vanishes for an incident neutrino energy $E_{\\nu}=m_{e}/(4sin^{2}\\theta_{W})$ and forward electrons (maximum recoil energy). The rest of helicity amplitudes show kinematical zeros in this configuration and therefore the cross section vanishes. Prospects to search for neutrino magnetic moment are discussed."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9307278","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:09:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3IuGUE6kJya57UbE8PWIh+yfz23C4+BLqE3zYOnz6DkhemDAtZ0wrOJxdmnzZho4Os6o50sKB+OGbhJLOwZjBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T06:06:51.331192Z"},"content_sha256":"d30fa7145dbac682ffa01352d5111c78239586cb54148ad50e1fab7a5713b8f9","schema_version":"1.0","event_id":"sha256:d30fa7145dbac682ffa01352d5111c78239586cb54148ad50e1fab7a5713b8f9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WQBE6TJCIXK7XJD5MKV5PZJXMU/bundle.json","state_url":"https://pith.science/pith/WQBE6TJCIXK7XJD5MKV5PZJXMU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WQBE6TJCIXK7XJD5MKV5PZJXMU/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-04T06:06:51Z","links":{"resolver":"https://pith.science/pith/WQBE6TJCIXK7XJD5MKV5PZJXMU","bundle":"https://pith.science/pith/WQBE6TJCIXK7XJD5MKV5PZJXMU/bundle.json","state":"https://pith.science/pith/WQBE6TJCIXK7XJD5MKV5PZJXMU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WQBE6TJCIXK7XJD5MKV5PZJXMU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1993:WQBE6TJCIXK7XJD5MKV5PZJXMU","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"aec349dc51d3c0afa6861eefa3074fb8feeb076f1749701e2dadef2ae8f701d6","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1993-07-16T01:19:42Z","title_canon_sha256":"13082a5d058069c5d00e5d46427a45e171bc4d49b371115a74bef257706895e1"},"schema_version":"1.0","source":{"id":"hep-ph/9307278","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9307278","created_at":"2026-05-18T01:09:17Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9307278v1","created_at":"2026-05-18T01:09:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9307278","created_at":"2026-05-18T01:09:17Z"},{"alias_kind":"pith_short_12","alias_value":"WQBE6TJCIXK7","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_16","alias_value":"WQBE6TJCIXK7XJD5","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_8","alias_value":"WQBE6TJC","created_at":"2026-05-18T12:25:47Z"}],"graph_snapshots":[{"event_id":"sha256:d30fa7145dbac682ffa01352d5111c78239586cb54148ad50e1fab7a5713b8f9","target":"graph","created_at":"2026-05-18T01:09:17Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We show the existence of dynamical zeros in the helicity amplitudes for neutrino-electron elastic scattering at lowest order in the standard theory. In particular, the $\\lambda=1/2$ non-flip electron helicity amplitude in the electron antineutrino process vanishes for an incident neutrino energy $E_{\\nu}=m_{e}/(4sin^{2}\\theta_{W})$ and forward electrons (maximum recoil energy). The rest of helicity amplitudes show kinematical zeros in this configuration and therefore the cross section vanishes. Prospects to search for neutrino magnetic moment are discussed.","authors_text":"F.J. Botella, J. Bernab\\'eu, J. Pe\\~narrocha, J. Segura","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"1993-07-16T01:19:42Z","title":"Dynamical zeros in neutrino-electron elastic scattering at leading order"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9307278","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:199de0613a587c9a9feebf5dbb36824afd95c93456410912deec082279a4df26","target":"record","created_at":"2026-05-18T01:09:17Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"aec349dc51d3c0afa6861eefa3074fb8feeb076f1749701e2dadef2ae8f701d6","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1993-07-16T01:19:42Z","title_canon_sha256":"13082a5d058069c5d00e5d46427a45e171bc4d49b371115a74bef257706895e1"},"schema_version":"1.0","source":{"id":"hep-ph/9307278","kind":"arxiv","version":1}},"canonical_sha256":"b4024f4d2245d5fba47d62abd7e537652ff5724f1e9a78fc7a0bd311d37e6673","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b4024f4d2245d5fba47d62abd7e537652ff5724f1e9a78fc7a0bd311d37e6673","first_computed_at":"2026-05-18T01:09:17.052600Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:09:17.052600Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"veLFhjDWNGVzy/LPEoY/MA+SGtiixT8JJzri19VI5ADhaNNBYZYeyBnxE7MVGjbpViuKA1k7HH35YJTn3mnRBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:09:17.053190Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/9307278","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:199de0613a587c9a9feebf5dbb36824afd95c93456410912deec082279a4df26","sha256:d30fa7145dbac682ffa01352d5111c78239586cb54148ad50e1fab7a5713b8f9"],"state_sha256":"453fdc7b4d2a2c201368f3c913bfce35d948845e703d123060aaad4f45af19d8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kO/Ig0KnytM4cec/yF7il3475bbEspl6eXk8yicNpQNhB6PY4umai006uZ74pJ7nkz7pKZCjLANEaAEV3O1MBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T06:06:51.334589Z","bundle_sha256":"57c0489ab79827eadc4b7b43c70c99a994e555739f1e5f0fc527453bbc8a964d"}}