{"paper":{"title":"Generalized polarizabilities of the proton in a constituent quark model revisited","license":"","headline":"","cross_cats":["hep-ph"],"primary_cat":"nucl-th","authors_text":"B. Pasquini, D. Drechsel, S. Scherer","submitted_at":"2000-08-23T10:25:07Z","abstract_excerpt":"We study low-energy virtual Compton scattering off the proton within the framework of a nonrelativistic constituent quark model.\n  The Compton tensor is divided into two separately gauge-invariant contributions.\n  The first consists of the groundstate propagation in the direct and crossed channels together with an appropriately chosen term to satisfy gauge invariance.\n  The residual part contains the relevant structure information characterized by the so-called generalized polarizabilities.\n  We discuss two different schemes to obtain the generalized polarizabilities from the residual term.\n  "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/0008046","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"}