Charmless Hadronic B Decays at Cleo
نویسنده
چکیده
The CLEO collaboration has studied two-body charmless hadronic decays of B mesons into nal states containing two pseudo-scalar mesons, or a pseudo-scalar and a vector meson. We summarize and discuss results presented during the winter/spring 1999 conference season, and provide a brief outlook towards future attractions to come. In particular, CLEO presented preliminary results on the decays B ! 0 (Br(B ! ) = (1:5 0:5 0:4) 10 5 ), B ! (Br(B ! ) = (3:5 1:0 0:5) 10 ), B ! K (Br(B ! K ) = (2:2 0:6 0:5) 10 ), and B ! K 0 (Br(B ! K ) = (1:5 0:4 0:3) 10 ) at DPF99, APS99, APS99, and ICHEP98 respectively. None of these decays had been observed previously. The rst two of these constitute the rst observation of hadronic b! u transitions. In addition, CLEO presented preliminary updates on a large number of previously published branching fractions and upper limits.
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