{"paper":{"title":"Quasi-free $\\pi^0$ Photoproduction from the Bound Nucleon","license":"","headline":"","cross_cats":["hep-ph"],"primary_cat":"nucl-ex","authors_text":"A.I. L'vov, A. Natter, A. Thomas, B. Seitz, F. Smend, F. Wissmann, F. Zapadtka, G. Caselotti, G. Rosner, H.-J. Arends, J. Ahrens, J.C. McGeorge, J.R.M. Annand, K. Kossert, M. Camen, M.I. Levchuk, M. Schumacher, O. Jahn, P. Grabmayr, P. Jennewein, R. Beck, V.A. Petrun'kin, V. Olmos de Leon, W. Weihofen","submitted_at":"2003-10-28T09:30:36Z","abstract_excerpt":"Differential cross-sections for quasi-free $\\pi^0$ photoproduction from the proton and neutron bound in the deuteron have been measured for $E_\\gamma= 200 - 400$ MeV at $\\theta^{\\rm lab}_\\gamma = 136.2^\\circ$ usind the Glasgow photon tagger at MAMI, the Mainz 48 cm $\\varnothing$ $\\times$ 64 cm NaI(Tl) photon detector and the G\\\"ottingen SENECA recoil detector. For the proton measurements made with both liquid deuterium and liquid hydrogen targets allow direct comparison of \"free\" $\\pi^0$ photoproduction cross-sections as extracted from the bound proton data with experimental free cross section"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-ex/0310028","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"}