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Measurement of the Branching Fractions and CP Asymmetry of B[superscript -]→D[subscript (CP)][superscript 0]K[superscript -] Decays with the BABAR Detector

Author(s)
Sciolla, Gabriella; Yamamoto, R. K.; Cowan, Ray F; Taylor, Frank E
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Alternative title
Measurement of the Branching Fractions and CP Asymmetry of B-→D(CP)0K- Decays with the BABAR Detector
Terms of use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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Abstract
We present a study of B[superscript -]→D[subscript CP][superscript 0]K[superscript -] decays, where D[subscript CP][superscript 0] is reconstructed in CP-even channels, based on a sample of 88.8×10[superscript 6] Υ(4S)→BB̅ decays collected with the BABAR detector at the PEP-II e[superscript +]e[superscript -] storage ring. We measure the ratio of Cabibbo-suppressed to Cabibbo-favored branching fractions B(B[superscript -]→D[subscript CP][superscript 0]K[superscript -])/B(B[superscript -]→D[subscript CP][superscript 0]π[superscript -])=[8.8±1.6(stat)±0.5(syst)]×10[superscript -2] and the CP asymmetry A[subscript CP]=0.07±0.17(stat)±0.06(syst). We also measure B(B[superscript -]→D[superscript 0]K[superscript -])/B(B[superscript -]→D[superscript 0]π[superscript -])=[8.31±0.35(stat)±0.20(syst)]×10[superscript -2] using a sample of 61.0×10[superscript 6] BB̅ pairs.
Date issued
2004-05
URI
http://hdl.handle.net/1721.1/70882
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Aubert, B. et al. “Measurement of the Branching Fractions and CP Asymmetry of B-→D(CP)0K- Decays with the BABAR Detector.” Physical Review Letters 92.20 (2004): n. pag. Web. 18 May 2012. © 2004 American Physical Society
Version: Final published version
ISSN
0031-9007
1079-7114

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