{"paper":{"title":"What makes the peak structure of the $\\Lambda p$ invariant-mass spectrum in the $K^{-} {}^{3} {\\rm He} \\to \\Lambda p n$ reaction?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph","nucl-ex"],"primary_cat":"nucl-th","authors_text":"Angels Ramos (Barcelona U., Barcelona U.), ECM & ICC, Eulogio Oset (Valencia U. & Valencia U., Ibaraki), Ific), Takayasu Sekihara (JAEA","submitted_at":"2017-09-21T07:40:47Z","abstract_excerpt":"Recently a peak structure was observed near the $K^{-} p p$ threshold in the in-flight ${}^{3} {\\rm He} (K^{-} , \\, \\Lambda p) n$ reaction of the E15 experiment at J-PARC, which could be a signal of a $\\bar{K} N N$ bound state. In order to investigate what is the origin of this peak, we calculate the cross section of this reaction, in particular based on the scenario that the $\\bar{K} N N$ bound state is indeed generated and decays into $\\Lambda p$. We find that the numerical result of the $\\Lambda p$ invariant-mass spectrum in the $\\bar{K} N N$ bound scenario is consistent with the J-PARC E15"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.08487","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"}