Branching Fractions and CP Asymmetries in B[superscript 0]→K[superscript +]K[superscript -]K[subscript S][superscript 0] and B[superscript +]→K[superscript +]K[subscript S][superscript 0]K[subscript S][superscript 0]
Name
Aubert-2004-Branching Fractions and CP Asymmetries in.pdf
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Author(s)
Sciolla, Gabriella
Yamamoto, R. K.
Cowan, Ray F
Taylor, Frank E
Alternative Title
Branching Fractions and CP Asymmetries in B0→K+K-KS0 and B+→K+KS0KS0
Date Issued
October 2004
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Aubert, B. et al. “Branching Fractions and CP Asymmetries in B0→K+K-KS0 and B+→K+KS0KS0.” Physical Review Letters 93.18 (2004): Web. 18 May 2012. © 2004 American Physical Society
Version
Final published version
Abstract
We measure the branching fractions and CP asymmetries in the decays B[superscript 0]→K[superscript +]K[superscript -]K[subscript S][superscript 0] and B[superscript +]→K[superscript +]K[subscript S][superscript 0]K[subscript S][superscript 0] using a sample of approximately 122×10[superscript 6] BB̅ pairs collected by the BABAR detector. From a time-dependent analysis of the K[superscript +]K[superscript -]K[subscript S][superscript 0] sample that excludes ϕK[subscript S][superscript 0], the values of the CP-violation parameters are S=-0.56±0.25±0.04 and C=-0.10±0.19±0.10, where the first uncertainty is statistical and the second is systematic. We confirm that the final state is nearly purely CP even and extract the standard model parameter sin2β=0.57±0.26±0.04[subscript -0][superscript +0.17] where the last error is due to uncertainty on the CP content. We present the first measurement of the CP-violating charge asymmetry A[subscript CP](B[superscript +]→K[superscript +]K[subscript S][superscript 0]K[subscript S][superscript 0])=-0.04±0.11±0.02. The branching fractions are B(B[superscript 0]→K[superscript +]K[superscript -]K[superscript 0])=(23.8±2.0±1.6)×10[superscript -6] and B(B[superscript +]→K[superscript +]K[subscript S][superscript 0]K[subscript S][superscript 0])=(10.7±1.2±1.0)×10[superscript -6].
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.93.181805
