{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:NF6GP6436MCJATKXM5STG3XRRY","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":"dc711d5d71653129b057233e5c8ba98ca0fa74f2b706882a7933e15c793fc916","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2010-04-13T02:39:05Z","title_canon_sha256":"49d59a360ccde4cdbe93a4fcd531aba1c92ddbe35dfba34cfe5e4da7e4480bc8"},"schema_version":"1.0","source":{"id":"1004.2096","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1004.2096","created_at":"2026-05-18T04:08:12Z"},{"alias_kind":"arxiv_version","alias_value":"1004.2096v2","created_at":"2026-05-18T04:08:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1004.2096","created_at":"2026-05-18T04:08:12Z"},{"alias_kind":"pith_short_12","alias_value":"NF6GP6436MCJ","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_16","alias_value":"NF6GP6436MCJATKX","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_8","alias_value":"NF6GP643","created_at":"2026-05-18T12:26:10Z"}],"graph_snapshots":[{"event_id":"sha256:ed6bbb8a69d77e51ed3cbd47a48db40c96a7a7b46224479833140775a23fb505","target":"graph","created_at":"2026-05-18T04:08:12Z","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 study medium modifications of the nucleon-nucleon (NN) cross sections and their influence on the nucleon knockout reactions. Using the eikonal approximation, we compare the results obtained with free NN cross sections with those obtained with a purely geometrical treatment of Pauli-blocking and with NN obtained with more elaborated Dirac-Bruecker methods. The medium effects are parametrized in terms of the baryon density. We focus on symmetric nuclear matter, although the geometrical Pauli-blocking allows for the treatment of asymmetric nuclear matter. It is shown that medium effects can ch","authors_text":"C.A. Bertulani, C. De Conti","cross_cats":["nucl-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2010-04-13T02:39:05Z","title":"Pauli blocking and medium effects in nucleon knockout reactions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1004.2096","kind":"arxiv","version":2},"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":"sha256:67a3869b9e8ac548f6fe175f978309fbe627815b514dd3ecd044b73786cfa24f","target":"record","created_at":"2026-05-18T04:08:12Z","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":"dc711d5d71653129b057233e5c8ba98ca0fa74f2b706882a7933e15c793fc916","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2010-04-13T02:39:05Z","title_canon_sha256":"49d59a360ccde4cdbe93a4fcd531aba1c92ddbe35dfba34cfe5e4da7e4480bc8"},"schema_version":"1.0","source":{"id":"1004.2096","kind":"arxiv","version":2}},"canonical_sha256":"697c67fb9bf304904d576765336ef18e34d7888a7015f50dbdd5eb6c62af3ca2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"697c67fb9bf304904d576765336ef18e34d7888a7015f50dbdd5eb6c62af3ca2","first_computed_at":"2026-05-18T04:08:12.689828Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:08:12.689828Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fnNQmIuL8+4aDLat0xiXxkbZ5OsqgbqHx2lWx2Mswa0GbRjJXcxjP/l2lKriqWRacm/rZmcp4MlTY7q4ZWQwCA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:08:12.690429Z","signed_message":"canonical_sha256_bytes"},"source_id":"1004.2096","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:67a3869b9e8ac548f6fe175f978309fbe627815b514dd3ecd044b73786cfa24f","sha256:ed6bbb8a69d77e51ed3cbd47a48db40c96a7a7b46224479833140775a23fb505"],"state_sha256":"fd82d92824a737d054c8c3372d33fedbd015b62efcd275edee5ca01e699a013d"}