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
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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
2004-05Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
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