{"paper":{"title":"Observation of the B$^0_\\mathrm{s}$ $\\to$ X(3872)$\\phi$ decay","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"CMS Collaboration","submitted_at":"2020-05-10T19:53:24Z","abstract_excerpt":"Using a data sample of proton-proton collisions at $\\sqrt{s} =$ 13 TeV, corresponding to an integrated luminosity of 140 fb$^{-1}$ collected by the CMS experiment in 2016-2018, the B$^0_\\mathrm{s}$ $\\to$ X(3872)$\\phi$ decay is observed. Decays into J/$\\psi\\,\\pi^+\\pi^-$ and K$^+$K$^-$ are used to reconstruct, respectively, the X(3872) and $\\phi$. The ratio of the product of branching fractions $\\mathcal{B}($B$^0_\\mathrm{s}$ $\\to$ X(3872)$\\phi)\\,\\mathcal{B}($X(3872) $\\to$ J$/\\psi\\,\\pi^+\\pi^-)$ to the product $\\mathcal{B}($B$^0_\\mathrm{s}$ $\\to$ $\\psi$(2S)$\\phi)\\,\\mathcal{B}(\\psi$(2S) $\\to$ J/$\\p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.04764","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2005.04764/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"}