{"paper":{"title":"Roles of scalar mesons in charmless $\\Lambda_b$ decays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"C.Q. Geng, Yao Yu, Y.K. Hsiao, Yu-Heng Lin","submitted_at":"2016-04-14T06:36:20Z","abstract_excerpt":"We first study the charmless two-body $\\Lambda_b$ decays with the scalar mesons as the final states and predict that ${\\cal B}(\\Lambda_b\\to \\Lambda f_0(980,1500))=(2.9\\pm 0.7,12.4\\pm 3.8)\\times 10^{-6}$ and ${\\cal B}(\\Lambda_b\\to p K^{*-}_0(800,1430))=(1.9\\pm 0.5,14.1\\pm 4.5)\\times 10^{-6}$. With the resonant $f_0(980,1500)\\to (\\pi^+\\pi^-,K^+K^-)$ and $K^{*-}_0\\to \\bar K^0 \\pi^-$ decays, we then obtain ${\\cal B}(\\Lambda_b\\to \\Lambda (\\pi^+\\pi^-,K^+K^-))=(4.2\\pm 1.0,3.5\\pm0.7)\\times 10^{-6}$ and ${\\cal B}(\\Lambda_b\\to p\\bar K^0 \\pi^-)=(10.4\\pm2.9)\\times 10^{-6}$, in comparison with the data of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.04043","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"}