{"paper":{"title":"Collision energy and system size dependence of $p_{\\mathrm{T}}$-differential radial flow fluctuations $v_{0}(p_{\\mathrm{T}})$ at RHIC","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"Zaining Wang","submitted_at":"2026-07-31T18:15:27Z","abstract_excerpt":"We report the first RHIC measurements of $v_{0}(p_\\mathrm{T})$ in Au+Au collisions at $\\sqrt{s_\\mathrm{NN}}=7.7$--$200$ GeV and O+O collisions at $\\sqrt{s_\\mathrm{NN}}=200$ GeV. The integral fluctuation $v_0$ follows a common $N_{\\rm ch}$ dependence in large and small systems, suggesting that the fluctuation magnitude is predominantly controlled by event-by-event fluctuations of the initial transverse size. The normalized response $v_0(p_\\mathrm{T})/v_0$ factorizes across centralities and systems, revealing a universal hydrodynamic response $\\kappa_0(p_\\mathrm{T})/\\kappa_0$ largely independent"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.00190","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2608.00190/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"}