{"id":39004,"date":"2026-08-21T15:27:57","date_gmt":"2026-08-21T15:27:57","guid":{"rendered":"https:\/\/lamarr-institute.org\/publication\/evidence-for-the-decay-b0_s-to-phieta\/"},"modified":"2026-09-17T11:17:55","modified_gmt":"2026-09-17T11:17:55","slug":"evidence-for-the-decay-b0_s-to-phieta","status":"publish","type":"publication","link":"https:\/\/lamarr-institute.org\/de\/publication\/evidence-for-the-decay-b0_s-to-phieta\/","title":{"rendered":"Evidence for the decay $B^0_s \\to \\phi\\eta&#8217;$"},"content":{"rendered":"<p>Using a dataset corresponding to an integrated luminosity of 9 fb$^{-1}$ collected in proton-proton collisions between 2011 and 2018 by the LHCb experiment, evidence is found for the decay $B^0_s \\to \\phi\\eta&#8217;$ with 3.5$\\sigma$ significance. The branching ratio relative to the $B^0_s \\to \\phi\\phi$ decay is determined to be $R = (3.56 \\pm 0.79 \\pm 0.18 \\pm 0.06) \\times 10^{-2}$. This corresponds to a branching fraction, $\\mathcal{B}(B^0_s \\to \\phi\\eta&#8216;) = (0.66 \\pm 0.15 \\pm 0.03 \\pm 0.02) \\times 10^{-6}$ where, in both cases, the first uncertainty is statistical, the second systematic, and the third due to external branching fractions.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Using a dataset corresponding to an integrated luminosity of 9 fb$^{-1}$ collected in proton-proton collisions between 2011 and 2018 by the LHCb experiment, evidence is found for the decay $B^0_s \\to \\phi\\eta&#8217;$ with 3.5$\\sigma$ significance. The branching ratio relative to the $B^0_s \\to \\phi\\phi$ decay is determined to be $R = (3.56 \\pm 0.79 \\pm 0.18 \\pm 0.06) \\times 10^{-2}$. This corresponds to a branching fraction, $\\mathcal{B}(B^0_s \\to \\phi\\eta&#8216;) = [&hellip;]<\/p>\n","protected":false},"author":14,"featured_media":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"publication-type":[30],"class_list":["post-39004","publication","type-publication","status-publish","hentry","publication-type-article"],"acf":[],"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/publication\/39004","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/publication"}],"about":[{"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/types\/publication"}],"author":[{"embeddable":true,"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/users\/14"}],"version-history":[{"count":0,"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/publication\/39004\/revisions"}],"wp:attachment":[{"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/media?parent=39004"}],"wp:term":[{"taxonomy":"publication-type","embeddable":true,"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/publication-type?post=39004"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}