{"paper":{"title":"Parton Distributions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A. Cooper-Sarkar, A. de Roeck, A. Glazov, A. Guffanti, A. M. Stasto, A. Piccione, A. Vogt, C. D. White, C. Royon, D. Colferai, D. Salek, F. Caola, F. Gelis, G. Altarelli, Gang Li, G. Beuf, G. P. Salam, G. Watt, H. Burkhardt, J. A. M. Vermaseren, J. Anderson, J. Feltesse, J. Grebenyuk, J. I. Latorre, J. Rojo, L. Del Debbio, L. Motyka, M. Boonekamp, M. Ciafaloni, M. Dittmar, M. Rogal, M. Ubiali, R. D. Ball, R. S. Thorne, S. Forte, S. Moch (convenors), T. Petersen, V. Halyo, V. Lendermann, V. Radescu","submitted_at":"2009-01-16T15:14:30Z","abstract_excerpt":"We provide an assessment of the state of the art in various issues related to experimental measurements, phenomenological methods and theoretical results relevant for the determination of parton distribution functions (PDFs) and their uncertainties, with the specific aim of providing benchmarks of different existing approaches and results in view of their application to physics at the LHC. We discuss higher order corrections, we review and compare different approaches to small x resummation, and we assess the possible relevance of parton saturation in the determination of PDFS at HERA and its "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0901.2504","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/0901.2504/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"}