{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:CFVWLYX526O5I33AV3PXY3HELZ","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":"446ecfd2cb6c4cd41f1126a2859e9332f5b1d0635379c3ed68cc1abad1a2b2ed","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2017-12-08T10:08:01Z","title_canon_sha256":"249fcce1e19f36e427001bfff9748d58c3a65d02ae33e2b0b048150d12322c37"},"schema_version":"1.0","source":{"id":"1712.03003","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.03003","created_at":"2026-05-18T00:18:14Z"},{"alias_kind":"arxiv_version","alias_value":"1712.03003v2","created_at":"2026-05-18T00:18:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.03003","created_at":"2026-05-18T00:18:14Z"},{"alias_kind":"pith_short_12","alias_value":"CFVWLYX526O5","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"CFVWLYX526O5I33A","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"CFVWLYX5","created_at":"2026-05-18T12:31:10Z"}],"graph_snapshots":[{"event_id":"sha256:16c8d03f7c0c6bc940ad4d2f55297ee935b10b114152735467d57ec9b6e6a974","target":"graph","created_at":"2026-05-18T00:18:14Z","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":"Starting from general expressions of well-chosen symmetric nuclear matter quantities derived for both zero- and finite-range effective theories, we derive the contributions to the effective mass. We first show that, independently of the range, the two-body contribution is enough to describe correctly the saturation mechanism but gives an effective mass value around $m^*/m \\simeq 0.4$. Then, we show that the full interaction (by instance, an effective two-body density-dependent term on top of the pure two-body term) is needed to reach the accepted value $m^*/m \\simeq 0.7-0.8$.","authors_text":"A. Pastore, D. Davesne, J. Meyer, J. Navarro, K. Bennaceur","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2017-12-08T10:08:01Z","title":"Two-body contributions to the effective mass in nuclear effective interactions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.03003","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:dcd95e669bafa3f3bad82d5fe69225170c4a6977986bc46c79ccf44f7bb8da23","target":"record","created_at":"2026-05-18T00:18:14Z","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":"446ecfd2cb6c4cd41f1126a2859e9332f5b1d0635379c3ed68cc1abad1a2b2ed","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2017-12-08T10:08:01Z","title_canon_sha256":"249fcce1e19f36e427001bfff9748d58c3a65d02ae33e2b0b048150d12322c37"},"schema_version":"1.0","source":{"id":"1712.03003","kind":"arxiv","version":2}},"canonical_sha256":"116b65e2fdd79dd46f60aedf7c6ce45e7e38a7ec8f805c0f030a18b35a0142f4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"116b65e2fdd79dd46f60aedf7c6ce45e7e38a7ec8f805c0f030a18b35a0142f4","first_computed_at":"2026-05-18T00:18:14.703769Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:18:14.703769Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lEJ3fejQz6NTd3Kjo2GJNo1ak1wOIN64rYiPb9Xjrrq0Pt/zmMj+FewHwQvZIJWYZ2yBZUcvHwZJIps1KWuEDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:18:14.704195Z","signed_message":"canonical_sha256_bytes"},"source_id":"1712.03003","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dcd95e669bafa3f3bad82d5fe69225170c4a6977986bc46c79ccf44f7bb8da23","sha256:16c8d03f7c0c6bc940ad4d2f55297ee935b10b114152735467d57ec9b6e6a974"],"state_sha256":"3e78b719c7008a353c54c14c617e4023356173ae6886e4ed29dfd3f810b82df1"}