{"paper":{"title":"Near-threshold $\\eta^\\prime$ meson production in ${\\pi^-}A$ reactions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"nucl-th","authors_text":"E.Ya.Paryev","submitted_at":"2019-06-05T10:46:43Z","abstract_excerpt":"We study the inclusive near-threshold production of $\\eta^\\prime$ mesons in $\\pi^-$ meson-nucleus reactions on the basis of the first-collision model relying on the nuclear spectral function and including incoherent processes of $\\eta^\\prime$ production in $\\pi^-$ meson--proton collisions. The model accounts for the absorption of initial $\\pi^-$ and final $\\eta^\\prime$ mesons, the binding of intranuclear protons and their Fermi motion, as well as the effect of the scalar $\\eta^\\prime$--nucleus potential (or the in-medium shift of the $\\eta^\\prime$ meson mass) on these processes. We calculate t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.02185","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"}