{"paper":{"title":"Reconstructing rare particle source by femtoscopic correlations","license":"http://creativecommons.org/licenses/by/4.0/","headline":"A new statistical method reconstructs single-particle emission sources for rare particles directly from femtoscopic correlations.","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Kai-Jia Sun, Liang Zhang, Song Zhang, Yu-Gang Ma","submitted_at":"2026-05-11T08:16:52Z","abstract_excerpt":"Measurement of particle emission source is a fundamental objective of femtoscopy in high-energy nuclear collisions. Conventional analyses rely on Gaussian parameterizations of pair emission sources, which makes the extraction of single-particle emission sources challenging, particularly for rare particles. Here, we introduce a novel Statistical Reconstruction method that allows extracting information of target single-particle sources relative to a data-constrained reference source instead of the Gaussian assumption. The correlation function is expressed as an ensemble average over single-parti"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"We introduce a novel Statistical Reconstruction method that allows extracting information of target single-particle sources relative to a data-constrained reference source instead of the Gaussian assumption... enabling a direct statistical reconstruction of the single-particle emission source, instead of inferring a pair source. The reconstructed source reproduces the key characteristics and this new approche achieves a systematic uncertainty of approximately 13% based on EPOS4 simulation.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The assumption that the single-particle-conditioned correlation kernel distribution is experimentally accessible and can be transformed to event-by-event extraction without significant bias from the choice of reference source or the accuracy of external HAL QCD potentials; also that the EPOS4HQ simulation faithfully represents real collision dynamics for validation.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"A statistical method reconstructs single-particle emission sources for rare particles directly from conditioned correlation kernels in femtoscopy, demonstrated on simulated J/ψ sources in pp collisions with 13% systematic uncertainty.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"A new statistical method reconstructs single-particle emission sources for rare particles directly from femtoscopic correlations.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"4b7aea0101193863a5c6111584e0bb2e7d4ffe1de927f66d0fe69b430cbd6a21"},"source":{"id":"2605.10167","kind":"arxiv","version":2},"verdict":{"id":"944eaed4-5b8d-466d-b191-6a07c6443acf","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-12T03:15:34.048755Z","strongest_claim":"We introduce a novel Statistical Reconstruction method that allows extracting information of target single-particle sources relative to a data-constrained reference source instead of the Gaussian assumption... enabling a direct statistical reconstruction of the single-particle emission source, instead of inferring a pair source. The reconstructed source reproduces the key characteristics and this new approche achieves a systematic uncertainty of approximately 13% based on EPOS4 simulation.","one_line_summary":"A statistical method reconstructs single-particle emission sources for rare particles directly from conditioned correlation kernels in femtoscopy, demonstrated on simulated J/ψ sources in pp collisions with 13% systematic uncertainty.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The assumption that the single-particle-conditioned correlation kernel distribution is experimentally accessible and can be transformed to event-by-event extraction without significant bias from the choice of reference source or the accuracy of external HAL QCD potentials; also that the EPOS4HQ simulation faithfully represents real collision dynamics for validation.","pith_extraction_headline":"A new statistical method reconstructs single-particle emission sources for rare particles directly from femtoscopic correlations."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.10167/integrity.json","findings":[],"available":true,"detectors_run":[{"name":"claim_evidence","ran_at":"2026-05-20T06:22:00.947110Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"ai_meta_artifact","ran_at":"2026-05-19T15:39:13.507435Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"doi_title_agreement","ran_at":"2026-05-19T12:01:17.487090Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"doi_compliance","ran_at":"2026-05-19T09:38:21.509244Z","status":"completed","version":"1.0.0","findings_count":0}],"snapshot_sha256":"ee257e30167792a9e90466992170198567c8e82092dffc8f4d4fb8c10d1efed9"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":2,"snapshot_sha256":"9e98f9f9e17f126876a2880a0d440d2d7c97524218fb70cbfe4770b53938a25d"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}