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Title: | Measurement of the branching fractions and CP-asymmetry of B^- -> D^0_(CP) K^- decays with the BaBar detector |
Authors: | Aubert, B Collaboration, BABAR Kyberd, P |
Issue Date: | 20-May-2004 |
Publisher: | American Physical Society |
Citation: | Physical Review Letters, 2004, 92 |
Abstract: | We present a study of B−→DCP0K− decays, where DCP0 is reconstructed in CP-even channels, based on a sample of 88.8×106 Υ(4S)→BB¯ decays collected with the BABAR detector at the PEP-II e+e− storage ring. We measure the ratio of Cabibbo-suppressed to Cabibbo-favored branching fractions B(B−→DCP0K−)/B(B−→DCP0π−)=[8.8±1.6(stat)±0.5(syst)]×10−2 and the CP asymmetry ACP=0.07±0.17(stat)±0.06(syst). We also measure B(B−→D0K−)/B(B−→D0π−)=[8.31±0.35(stat)±0.20(syst)]×10−2 using a sample of 61.0×106 BB¯ pairs. |
URI: | http://bura.brunel.ac.uk/handle/2438/19596 |
DOI: | http://dx.doi.org/10.1103/PhysRevLett.92.202002 |
ISSN: | 0031-9007 http://dx.doi.org/10.1103/PhysRevLett.92.202002 |
Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers |
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