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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"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"nucl-ex/0507014","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"nucl-ex","submitted_at":"2005-07-08T12:36:14Z","cross_cats_sorted":[],"title_canon_sha256":"ab56e9fa761753cf5da51e6e0d25da9a22c97f8b2c5d9f32bce65d96a11887af","abstract_canon_sha256":"0a1ff11f1efbea5472a928a37ae38f25246834a523d695090f64b07b1c4eb211"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:56:48.636740Z","signature_b64":"NvmpMw/6Z+Zy6Rt5Z5GI+xbwylVcpRwPOFLtxSAmj+fJ7Woh/ZKmRDVAuzjTDrGPrX4n47Nx+Atu4aBCCvcZDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7e27e0cfbf7c2081b540f220a7b1218b5ae460adf39b355a9dda2b346c4335b6","last_reissued_at":"2026-07-04T16:56:48.636328Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:56:48.636328Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"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. 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