{"paper":{"title":"$J/\\psi N$ interactions revisited and $\\Lambda_b^0 \\to J/\\psi K^- (\\pi^-) p$ decays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"C. W. Xiao","submitted_at":"2016-09-09T09:13:05Z","abstract_excerpt":"Recently LHCb experiments confirmed the findings of the two $P_c$ states in the $\\Lambda_b^0 \\to J/\\psi p \\pi^-$ decays. In the present work, we investigate both the $\\Lambda_b^0 \\to J/\\psi K^- p$ and the $\\Lambda_b^0 \\to J/\\psi p \\pi^-$ decays, continuing the investigations of our former works on the interactions of $J/\\psi N$ with its coupled channels by considering the s-/u- channel contributions. We obtain consistent results of the line-shape of the $J/\\psi N$ invariant mass distribution with the LHCb experiments, and favour the $P_c (4450)$ state as a $\\bar{D}^* \\Sigma_c$ bound state with"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.02712","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"}