{"paper":{"title":"$\\Xi(1690)^-$ production in the $K^-p\\to K^+K^-\\Lambda$ reaction process near threshold","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","nucl-th"],"primary_cat":"hep-ph","authors_text":"Jung Keun Ahn, Seung-il Nam","submitted_at":"2018-09-20T12:31:04Z","abstract_excerpt":"We investigate $\\Xi(1690)^-$ production from the $K^-p\\to K^+K^-\\Lambda$ reaction within the effective Lagrangian approach at the tree-level Born approximation. We consider the $s$- and $u$-channel $\\Sigma/\\Lambda$ ground states and resonances for the $\\Xi$-pole contributions, in addition to the $s$-channel $\\Lambda$, $u$-channel nucleon pole, and $t$-channel $K^-$-exchange for the $\\phi$-pole contributions. The $\\Xi$-pole includes $\\Xi(1320)$, $\\Xi(1535)$, $\\Xi(1690)(J^p=1/2^-)$,and $\\Xi(1820)(J^p=3/2^-)$. We calculate the Dalitz plot density of $(d^2\\sigma/dM_{K^+K^-}dM_{K^-\\Lambda}$ at 4.2 "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.07765","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"}