{"paper":{"title":"Branching fractions of $B_{(c)}$ decays involving $J/\\psi$ and $X(3872)$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"C.Q. Geng, Y.K. Hsiao","submitted_at":"2016-07-10T09:01:41Z","abstract_excerpt":"We study two-body $B_{(c)}\\to M_c(\\pi,K)$ and semileptonic $B_{c}\\to M_c\\ell^-\\bar \\nu_\\ell$ decays with $M_c=(J/\\psi,X_c^0)$, where $X_c^0\\equiv X^0(3872)$ is regarded as the tetraquark state of $c\\bar cu\\bar u(d\\bar d)$. With the decay constant $f_{X_c^0}=(234\\pm 52)$~MeV determined from the data, we predict that ${\\cal B}(B^-\\to X_c^0\\pi^-)=(11.5\\pm 5.7)\\times 10^{-6}$, ${\\cal B}(\\bar B^0\\to X_c^0\\bar K^0)=(2.1\\pm 1.0)\\times 10^{-4}$, and ${\\cal B}(\\bar B^0_s\\to X_c^0\\bar K^0)=(11.4\\pm 5.6)\\times 10^{-6}$. With the form factors in QCD models, we calculate that ${\\cal B}(B_c^-\\to X_c^0\\pi^-,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.02718","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"}