{"id":35152,"date":"2026-04-13T14:10:46","date_gmt":"2026-04-13T14:10:46","guid":{"rendered":"https:\/\/lamarr-institute.org\/publication\/observation-of-b_c-to-d-h-h-decays\/"},"modified":"2026-09-17T11:20:04","modified_gmt":"2026-09-17T11:20:04","slug":"observation-of-b_c-to-d-h-h-decays","status":"publish","type":"publication","link":"https:\/\/lamarr-institute.org\/de\/publication\/observation-of-b_c-to-d-h-h-decays\/","title":{"rendered":"Observation of $B_c^+ \\to D h^+ h^-$ Decays"},"content":{"rendered":"<p>Searches are presented for $B_{c}^{+} \\to D h^+ h^-$ decays, where D is a charmed meson and $h^{\\pm}$ is a charged pion or kaon, using pp collision data collected by the LHCb experiment corresponding to an integrated luminosity of 9 fb $^{-1}$. The decays $B_c^+\\to D^+ K^+\\pi^-, B_c^+\\to D^{*+} K^+\\pi^-$ and $B_c^+\\to D_s^+ K^+ K^-$ are observed for the first time. Their branching fractions, expressed as ratios relative to that of the $B_c^+\\to B_s^0\\pi^+$ decay, are determined to be<\/p>\n<p>$R(B_c^+\\to D^+ K^+\\pi^-) =(1.96 \\pm 0.23\\pm 0.08 \\pm 0.10)\\times 10^{-3}, R(B_c^+\\to D^{*+} K^+\\pi^-) =(3.67 \\pm 0.55 \\pm 0.24\\pm 0.20)\\times 10^{-3}, R(B_c^+\\to D_s^+ K^+ K^-) =(1.61 \\pm 0.35\\pm 0.13\\pm 0.07)\\times 10^{-3}, $<\/p>\n<p>where the first uncertainty is statistical, the second is systematic, and the third is due to the limited precision on the D-meson branching fractions. The decay channels proceed primarily through excited $K^0$ or $D^0$ resonances or $\\phi$ mesons, and open a new avenue for studies of charge-parity violation in beauty mesons.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Searches are presented for $B_{c}^{+} \\to D h^+ h^-$ decays, where D is a charmed meson and $h^{\\pm}$ is a charged pion or kaon, using pp collision data collected by the LHCb experiment corresponding to an integrated luminosity of 9 fb $^{-1}$. The decays $B_c^+\\to D^+ K^+\\pi^-, B_c^+\\to D^{*+} K^+\\pi^-$ and $B_c^+\\to D_s^+ K^+ K^-$ are observed for the first time. Their branching fractions, expressed as ratios relative to that [&hellip;]<\/p>\n","protected":false},"author":14,"featured_media":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"publication-type":[30],"class_list":["post-35152","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\/35152","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\/35152\/revisions"}],"wp:attachment":[{"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/media?parent=35152"}],"wp:term":[{"taxonomy":"publication-type","embeddable":true,"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/publication-type?post=35152"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}