{"paper":{"title":"Measurement of the LT-asymmetry in \\pi^0 electroproduction at the energy of the \\Delta (1232) resonance","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. S\\\"ule, D. Baumann, D. Bosnar, D. Drechsel, D. Elsner, F. H. Klein, G. Rosner, H. Merkel, H. Schmieden, I. Ewald, J. Bermuth, J. Friedrich, J.M. Friedrich, K.W. Krygier, L. Tiator, M. Ding, M. Distler, M. Kohl, M. Potokar, M. Seimetz O. Str\\\"ahle, M. Weis, P. Barneo, P. Bartsch, P. Jennewein, P. Merle, R. B\\\"ohm, R. Neuhausen, S. Gr\\\"ozinger, S. Kamalov, Th. Pospischil, Th. Walcher, U. M\\\"uller","submitted_at":"2005-07-08T12:36:14Z","abstract_excerpt":"The reaction p(e,e'p)pi^0 has been studied at Q^2=0.2 (GeV/c)^2 in the region of W=1232 MeV. From measurements left and right of q, cross section asymmetries \\rho_LT have been obtained in forward kinematics \\rho_LT(\\theta_\\pi^0=20deg) = (-11.68 +/- 2.36_stat +/- 2.36_sys)$ and backward kinematics \\rho_LT(\\theta_\\pi^0=160deg) =(12.18 +/- 0.27_stat +/- 0.82_sys). Multipole ratios \\Re(S_1+^* M_1+)/|M_1+|^2 and \\Re(S_0+^* M_1+)/|M_1+|^2 were determined in the framework of the MAID2003 model. The results are in agreement with older data. The unusally strong negative \\Re(S_0+^* M_1+)/|M_1+|^2 requir"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-ex/0507014","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/nucl-ex/0507014/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"}