{"paper":{"title":"Measurement of the $p(e,e'\\pi^+)n$ reaction close to threshold and at low $Q^2$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A1 Collaboration: I. Fri\\v{s}\\v{c}i\\'c, A. Denig, A. Esser, B. S. Schlimme, C. Ayerbe Gayoso, C. Sfienti, D. Baumann, D. Bosnar, D. G. Middleton, F. Schulz, H. Merkel, J. Pochodzalla, L. Debenjak, M. Ding, M. Mihovilovi\\v{c}, M. O. Distler, M. Schoth, M. Thiel, P. Achenbach, R. B\\\"ohm, S. \\v{S}irca, Th. Walcher, U. M\\\"uller","submitted_at":"2016-06-03T05:33:01Z","abstract_excerpt":"The cross section of the $p(e,e'\\pi^+)n$ reaction has been measured for five kinematic settings at an invariant mass of $W = 1094$ MeV and for a four-momentum transfer of $Q^2 = 0.078$ (GeV/$c$)$^2$. The measurement has been performed at MAMI using a new short-orbit spectrometer (SOS) of the A1 collaboration, intended for detection of low-energy pions. The transverse and longitudinal cross section terms were separated using the Rosenbluth method and the transverse-longitudinal interference term has been determined from the left-right asymmetry. The experimental cross section terms are compared"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.00970","kind":"arxiv","version":3},"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"}