{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:RHYK6EECE5TRO3WGED3TBO43AI","short_pith_number":"pith:RHYK6EEC","schema_version":"1.0","canonical_sha256":"89f0af10822767176ec620f730bb9b021b54bcdd3d5f8dacc0cd2446be91b8fa","source":{"kind":"arxiv","id":"2506.16865","version":2},"attestation_state":"computed","paper":{"title":"Photon Emission from Nucleon-Nucleon Bremsstrahlung in Fermi-energy Heavy-Ion Collisions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"Ralf Rapp, Thomas Onyango","submitted_at":"2025-06-20T09:32:17Z","abstract_excerpt":"The emission of direct (hard and thermal) photons from nucleon-nucleon Bremsstrahlung in heavy-ion collisions at Fermi energies is analyzed. We utilize a photon emission rate based on a quantum-field-theoretical model together with nucleon distribution functions extracted from a coarse-graining method of transport model simulations. The latter accounts for off-equilibrium effects during the early stages of nuclear collisions primarily occurring in the beam direction while the transverse-momentum distributions are amenable to a thermal description. With this setup, we quantify the contributions"},"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":"2506.16865","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2025-06-20T09:32:17Z","cross_cats_sorted":[],"title_canon_sha256":"70545491fead62551b6ebbbf3cd2514ebdf7e79854496f0d03ffa4e46d8d7f58","abstract_canon_sha256":"51f5d429e37ad105cd4d8b8101d837e8b7d978db978c9a52394bb875ec3a3242"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:28:17.715646Z","signature_b64":"jppqd2bGp+XfCDhsan9kSqUx9DH2kNDJqcSfCGoD9iqz47yVND2q6Elj/2jDtu77+TTNTV4dcUumaKDP/PKBDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"89f0af10822767176ec620f730bb9b021b54bcdd3d5f8dacc0cd2446be91b8fa","last_reissued_at":"2026-07-05T11:28:17.715121Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:28:17.715121Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Photon Emission from Nucleon-Nucleon Bremsstrahlung in Fermi-energy Heavy-Ion Collisions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"Ralf Rapp, Thomas Onyango","submitted_at":"2025-06-20T09:32:17Z","abstract_excerpt":"The emission of direct (hard and thermal) photons from nucleon-nucleon Bremsstrahlung in heavy-ion collisions at Fermi energies is analyzed. We utilize a photon emission rate based on a quantum-field-theoretical model together with nucleon distribution functions extracted from a coarse-graining method of transport model simulations. The latter accounts for off-equilibrium effects during the early stages of nuclear collisions primarily occurring in the beam direction while the transverse-momentum distributions are amenable to a thermal description. With this setup, we quantify the contributions"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.16865","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2506.16865/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2506.16865","created_at":"2026-07-05T11:28:17.715176+00:00"},{"alias_kind":"arxiv_version","alias_value":"2506.16865v2","created_at":"2026-07-05T11:28:17.715176+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.16865","created_at":"2026-07-05T11:28:17.715176+00:00"},{"alias_kind":"pith_short_12","alias_value":"RHYK6EECE5TR","created_at":"2026-07-05T11:28:17.715176+00:00"},{"alias_kind":"pith_short_16","alias_value":"RHYK6EECE5TRO3WG","created_at":"2026-07-05T11:28:17.715176+00:00"},{"alias_kind":"pith_short_8","alias_value":"RHYK6EEC","created_at":"2026-07-05T11:28:17.715176+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/RHYK6EECE5TRO3WGED3TBO43AI","json":"https://pith.science/pith/RHYK6EECE5TRO3WGED3TBO43AI.json","graph_json":"https://pith.science/api/pith-number/RHYK6EECE5TRO3WGED3TBO43AI/graph.json","events_json":"https://pith.science/api/pith-number/RHYK6EECE5TRO3WGED3TBO43AI/events.json","paper":"https://pith.science/paper/RHYK6EEC"},"agent_actions":{"view_html":"https://pith.science/pith/RHYK6EECE5TRO3WGED3TBO43AI","download_json":"https://pith.science/pith/RHYK6EECE5TRO3WGED3TBO43AI.json","view_paper":"https://pith.science/paper/RHYK6EEC","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2506.16865&json=true","fetch_graph":"https://pith.science/api/pith-number/RHYK6EECE5TRO3WGED3TBO43AI/graph.json","fetch_events":"https://pith.science/api/pith-number/RHYK6EECE5TRO3WGED3TBO43AI/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/RHYK6EECE5TRO3WGED3TBO43AI/action/timestamp_anchor","attest_storage":"https://pith.science/pith/RHYK6EECE5TRO3WGED3TBO43AI/action/storage_attestation","attest_author":"https://pith.science/pith/RHYK6EECE5TRO3WGED3TBO43AI/action/author_attestation","sign_citation":"https://pith.science/pith/RHYK6EECE5TRO3WGED3TBO43AI/action/citation_signature","submit_replication":"https://pith.science/pith/RHYK6EECE5TRO3WGED3TBO43AI/action/replication_record"}},"created_at":"2026-07-05T11:28:17.715176+00:00","updated_at":"2026-07-05T11:28:17.715176+00:00"}