{"paper":{"title":"Nuclear Gluon Gravitational Form Factors and Neutron Skins at the Electron-Ion Collider","license":"http://creativecommons.org/publicdomain/zero/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Lei Wang","submitted_at":"2026-06-23T18:36:47Z","abstract_excerpt":"Coherent quarkonium production at the Electron--Ion Collider can image the average small-$x$ gluon radius of nuclei, providing a reaction mechanism complementary to parity-violating electron scattering. We develop a calibrated radius-sum-rule framework that connects this gluonic radius to neutron skins and quantify the leading limitations from finite-dipole saturation, nuclear opacity, and instrumental resolution. The central result is that coherent $\\Jpsi$ production contains sufficient shape information for a competitive neutron-skin program, but its precision is not limited by luminosity al"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.25078","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/2606.25078/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"}