{"paper":{"title":"Analysis of the low-energy $\\eta$NN-dynamics within a three-body formalism","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"A. Fix, H. Arenhoevel","submitted_at":"2000-06-29T09:59:15Z","abstract_excerpt":"The interaction of an $\\eta$-meson with two nucleons is studied within a three-body approach. The major features of the $\\eta NN$-system in the low-energy region are accounted for by using a s-wave separable ansatz for the two-body $\\eta N$- and $NN$-amplitudes. The calculation is confined to the $(J^\\pi;T)=(0^-;1)$ and $(1^-;0)$ configurations which are assumed to be the most promising candidates for virtual or resonant $\\eta NN$-states. The eigenvalue three-body equation is continued analytically into the nonphysical sheets by contour deformation. The position of the poles of the three-body "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/0006074","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"}