{"paper":{"title":"Study of the $\\eta$-nucleus interaction in the $p d \\to ^3He \\eta$ reaction near threshold","license":"","headline":"","cross_cats":["nucl-ex"],"primary_cat":"nucl-th","authors_text":"B. K. Jain, K. P. Khemchandani, N. G. Kelkar","submitted_at":"2001-12-21T08:43:14Z","abstract_excerpt":"A detailed study of the effect of the $\\eta$-nucleus final state interaction (FSI) in the $p d \\to ^3$He$ \\eta$ reaction close to threshold is presented. The FSI is incorporated through a T-matrix for $\\eta ^3$He elastic scattering, constructed using few body equations. This T-matrix accounts for off-shell and binding effects in $\\eta$-nucleus scattering. The energy dependence of the data on the $p d \\to ^3$He$ \\eta$ reaction near threshold is reproduced only after including the FSI. The off-shell and binding effects in $\\eta ^3$He scattering are found to be important. Given the uncertainty in"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/0112065","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":""},"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"}