{"id":35120,"date":"2026-04-13T14:10:10","date_gmt":"2026-04-13T14:10:10","guid":{"rendered":"https:\/\/lamarr-institute.org\/publication\/first-measurement-of-time-dependent-cp-violation-in-the-flavor-changing-neutral-current-decay-b0rightarrow-k_s0%ce%bc%ce%bc\/"},"modified":"2026-06-08T13:17:30","modified_gmt":"2026-06-08T13:17:30","slug":"first-measurement-of-time-dependent-cp-violation-in-the-flavor-changing-neutral-current-decay-b0rightarrow-k_s0%ce%bc%ce%bc","status":"publish","type":"publication","link":"https:\/\/lamarr-institute.org\/de\/publication\/first-measurement-of-time-dependent-cp-violation-in-the-flavor-changing-neutral-current-decay-b0rightarrow-k_s0%ce%bc%ce%bc\/","title":{"rendered":"First measurement of time-dependent CP violation in the flavor-changing neutral-current decay $B^{0}\\rightarrow K_{S}^{0}\\mu^{+}\\mu^{-}$"},"content":{"rendered":"<p>A flavor-tagged time-dependent analysis of $B^{0}\\rightarrow K_{S}^{0}\\mu^{+}\\mu^{-}$ decays is performed across the full dimuon mass range excluding the J\/$\\psi$ and $\\psi$(2S) resonance regions. The analysis uses proton-proton collision data collected by the LHCb experiment in 2011-2018 at center-of-mass energies of 7, 8 and 13TeV, corresponding to an integrated luminosity of 9 fb $^{-1}$. The CP violation parameters are determined to be $C=-0.13 \\pm 0.32 \\pm 0.04$ and $S= +0.82\\pm 0.29 \\pm 0.05$, where the first uncertainties are statistical and the second are systematic. The results are consistent with the Standard Model prediction. This is the first experimental study of time-dependent CP violation in $b\\rightarrow sl^{+}l^{-}$ processes.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A flavor-tagged time-dependent analysis of $B^{0}\\rightarrow K_{S}^{0}\\mu^{+}\\mu^{-}$ decays is performed across the full dimuon mass range excluding the J\/$\\psi$ and $\\psi$(2S) resonance regions. The analysis uses proton-proton collision data collected by the LHCb experiment in 2011-2018 at center-of-mass energies of 7, 8 and 13TeV, corresponding to an integrated luminosity of 9 fb $^{-1}$. The CP violation parameters are determined to be $C=-0.13 \\pm 0.32 \\pm 0.04$ and $S= +0.82\\pm 0.29 [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"publication-type":[30],"class_list":["post-35120","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\/35120","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\/12"}],"version-history":[{"count":0,"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/publication\/35120\/revisions"}],"wp:attachment":[{"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/media?parent=35120"}],"wp:term":[{"taxonomy":"publication-type","embeddable":true,"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/publication-type?post=35120"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}