{"id":32299,"date":"2026-01-21T17:01:41","date_gmt":"2026-01-21T17:01:41","guid":{"rendered":"https:\/\/lamarr-institute.org\/publication\/measurement-of-cp-asymmetry-in-b_s0-to-d_smp-kpm-decays\/"},"modified":"2026-06-08T13:19:34","modified_gmt":"2026-06-08T13:19:34","slug":"measurement-of-cp-asymmetry-in-b_s0-to-d_smp-kpm-decays","status":"publish","type":"publication","link":"https:\/\/lamarr-institute.org\/de\/publication\/measurement-of-cp-asymmetry-in-b_s0-to-d_smp-kpm-decays\/","title":{"rendered":"Measurement of $C\\!P$ asymmetry in $B_s^0 \\to D_s^{\\mp} K^{\\pm}$ decays"},"content":{"rendered":"<p>A measurement of the $C\\!P$-violating parameters in $B_s^0 \\to D_s^{\\mp} K^{\\pm}$ decays is reported, based on the analysis of proton-proton collision data collected by the LHCb experiment corresponding to an integrated luminosity of $6\\,\\mathrm{fb}^{-1}$ at a centre-of-mass energy of $13 \\,\\mathrm{TeV}$. The measured parameters are $C_f = 0.791 \\pm 0.061 \\pm 0.022$, $A_f^{\\Delta\\Gamma} = -0.051 \\pm 0.134 \\pm 0.058$, $A_{\\overline{f}}^{\\Delta\\Gamma} = -0.303 \\pm 0.125 \\pm 0.055$, $S_f = -0.571 \\pm 0.084 \\pm 0.023$ and $S_{\\overline{f}} = -0.503 \\pm 0.084 \\pm 0.025$, where the first uncertainty is statistical and the second systematic. Together with the value of the $B_s^0$ mixing phase $-2\\beta_s$, these parameters are used to obtain a measurement of the CKM angle $\\gamma$ equal to $ (74\\pm12)^\\circ$ modulo $180^{\\circ}$, where the uncertainty contains both statistical and systematic contributions. This result is combined with the previous LHCb measurement in this channel using $3\\,\\mathrm{fb}^{-1}$ resulting in a determination of $\\gamma= (81^{+12}_{-11})^\\circ$&#8220;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A measurement of the $C\\!P$-violating parameters in $B_s^0 \\to D_s^{\\mp} K^{\\pm}$ decays is reported, based on the analysis of proton-proton collision data collected by the LHCb experiment corresponding to an integrated luminosity of $6\\,\\mathrm{fb}^{-1}$ at a centre-of-mass energy of $13 \\,\\mathrm{TeV}$. The measured parameters are $C_f = 0.791 \\pm 0.061 \\pm 0.022$, $A_f^{\\Delta\\Gamma} = -0.051 \\pm 0.134 \\pm 0.058$, $A_{\\overline{f}}^{\\Delta\\Gamma} = -0.303 \\pm 0.125 \\pm 0.055$, $S_f = -0.571 \\pm [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"publication-type":[30],"class_list":["post-32299","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\/32299","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\/32299\/revisions"}],"wp:attachment":[{"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/media?parent=32299"}],"wp:term":[{"taxonomy":"publication-type","embeddable":true,"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/publication-type?post=32299"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}