{"paper":{"title":"Pentaquarks in semileptonic $\\Lambda_b$ decays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"C.Q. Geng, Ping Zhou, Y.K. Hsiao","submitted_at":"2017-06-08T07:17:59Z","abstract_excerpt":"In terms of ${\\cal P}_{c1,c2}={\\cal P}_c(4380,4450)^+$ as the hidden charm pentaquark states to consist of $c\\bar c uud$, we study the semileptonic $\\Lambda_b\\to ({\\cal P}_{c1,c2}\\to)J/\\psi p \\ell^-\\bar \\nu_\\ell$ decays. In our discussion, while the main contribution to $\\Lambda_b\\to K^-J/\\psi p$ is from the non-perturbative process via the doubly charmful $b\\to c\\bar cs$ transition, we propose that the $\\Lambda_b\\to {\\cal P}_{c1,c2}\\to J/\\psi p$ transitions are partly contribute to the $\\Lambda_b\\to K^-({\\cal P}_{c1,c2}\\to)J/\\psi p$ decays, in which the required $c\\bar c$ pair is formed by th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.02460","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"}