Measurement of the Branching Fractions and CP Asymmetry of B[superscript -]→D[subscript (CP)][superscript 0]K[superscript -] Decays with the BABAR Detector
Name
Aubert-2004-Measurement of the Branching Fractions and CP Asymmetry.pdf
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Author(s)
Sciolla, Gabriella
Yamamoto, R. K.
Cowan, Ray F
Taylor, Frank E
Alternative Title
Measurement of the Branching Fractions and CP Asymmetry of B-→D(CP)0K- Decays with the BABAR Detector
Date Issued
May 2004
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
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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.92.202002
