{"paper":{"title":"Nucleon sea and the five-quark components","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex","nucl-th"],"primary_cat":"hep-ph","authors_text":"Jen-Chieh Peng, Wen-Chen Chang","submitted_at":"2012-07-09T22:28:25Z","abstract_excerpt":"We generalize the approach of Brodsky {\\it et al.} for the intrinsic charm quark distribution in the nucleons to the light-quark sector involving intrinsic $\\bar u, \\bar d, s$ and $\\bar s$ sea quarks. We compare the calculations with the existing $\\bar d - \\bar u$, $s + \\bar s$, and $\\bar u + \\bar d - s -\\bar s$ data. The good agreement between the theory and the data is interpreted as evidence for the existence of the intrinsic light-quark sea in the nucleons. The probabilities for the $|uudu\\bar{u}>$, $|uudd\\bar{d}>$ and $|uuds\\bar{s}>$ Fock states are also extracted."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.2193","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":""},"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"}