{"paper":{"title":"When JIMWLK evolution really matters: the example of incoherent diffraction","license":"http://creativecommons.org/licenses/by/4.0/","headline":"JIMWLK evolution leads to larger cross sections than Gaussian approximation for incoherent diffraction","cross_cats":[],"primary_cat":"hep-ph","authors_text":"D.N. Triantafyllopoulos, T. Lappi","submitted_at":"2026-04-28T21:21:25Z","abstract_excerpt":"We consider high energy scattering in the effective theory of the Color Glass Condensate. The most convenient degrees of freedom are Wilson lines encoding multiple gluon exchanges, whose evolution with energy follows the JIMWLK equation. Instead of using the latter, very often one resorts to a Gaussian Approximation (GA), which is known to be remarkably accurate in describing a wide class of multi-gluon correlators whose expansion in the weak scattering limit starts with an exchange of only two gluons. Here we demonstrate, both analytically and numerically, that such an approximation is not va"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"The JIMWLK calculation leads to cross sections which are systematically larger in all kinematic regimes of interest.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"That the Gaussian Approximation's failure for four-gluon correlators is general and that the numerical JIMWLK implementation accurately captures the evolution without uncontrolled approximations in the chosen initial conditions.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"JIMWLK evolution gives larger incoherent diffraction cross sections than the Gaussian approximation for photon-nucleus collisions because the latter is invalid for four-gluon starting correlators.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"JIMWLK evolution leads to larger cross sections than Gaussian approximation for incoherent diffraction","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"efdd714a0ca7df02dbb6a15eb0abc322a6ceaf0b51039ee10c5b5b39f99ee3ae"},"source":{"id":"2604.26123","kind":"arxiv","version":2},"verdict":{"id":"ed446b05-d66f-4876-9ee9-5ea5f93ad4bb","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-07T15:28:15.046378Z","strongest_claim":"The JIMWLK calculation leads to cross sections which are systematically larger in all kinematic regimes of interest.","one_line_summary":"JIMWLK evolution gives larger incoherent diffraction cross sections than the Gaussian approximation for photon-nucleus collisions because the latter is invalid for four-gluon starting correlators.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"That the Gaussian Approximation's failure for four-gluon correlators is general and that the numerical JIMWLK implementation accurately captures the evolution without uncontrolled approximations in the chosen initial conditions.","pith_extraction_headline":"JIMWLK evolution leads to larger cross sections than Gaussian approximation for incoherent diffraction"},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2604.26123/integrity.json","findings":[],"available":true,"detectors_run":[{"name":"ai_meta_artifact","ran_at":"2026-05-21T03:34:32.181109Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"doi_compliance","ran_at":"2026-05-19T20:27:14.319102Z","status":"completed","version":"1.0.0","findings_count":0}],"snapshot_sha256":"d1eaf6ee354c239238f24d6dbf075a72922b2887c63590ab5a9484241fc9a6fb"},"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"}