{"paper":{"title":"Three-body decay of $\\Lambda_c^{*} (2765)$ and determination of its spin-parity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-ph","authors_text":"A. Hosaka, A. J. Arifi, H. Nagahiro, K. Tanida","submitted_at":"2020-03-18T13:18:00Z","abstract_excerpt":"We study three-body decays of $\\Lambda_c^{*}(2765) \\to \\Lambda_c^+\\pi^+\\pi^-$ by using effective Lagrangians in a non-relativistic framework. We consider the sequential decays through $\\Sigma_c(2455)\\pi$ and $\\Sigma_c^*(2520)\\pi$ in intermediate states which are dominant contributions. The coupling constants in the effective Lagrangians are computed in the quark model. We demonstrate that the ratio $R= \\Gamma(\\Lambda_c^*\\to\\Sigma_c^*(2520)\\pi)/\\Gamma(\\Lambda_c^*\\to \\Sigma_c(2455)\\pi)$ and angular correlations are sensitive to the spin and parity of $\\Lambda_c^{*}(2765)$. Thus, the measurement "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.08202","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2003.08202/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}