{"paper":{"title":"Parity violating pion electroproduction off the nucleon","license":"","headline":"","cross_cats":["hep-ph"],"primary_cat":"nucl-th","authors_text":"D. Drechsel (University of Mainz, Germany), H.-W. Hammer","submitted_at":"1995-08-08T13:18:13Z","abstract_excerpt":"Parity violating (PV) contributions due to interference between $\\gamma$ and $Z^0$ exchange are calculated for pion electroproduction off the nucleon. A phenomenological model with effective Lagrangians is used to determine the resulting asymmetry for the energy region between threshold and $\\Delta(1232)$ resonance. The $\\Delta$ resonance is treated as a Rarita-Schwinger field with phenomenological $N \\Delta$ transition currents. The background contributions are given by the usual Born terms using the pseudovector $\\pi N$ Lagrangian. Numerical results for the asymmetry are presented."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/9508014","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"}