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Observation of B+->(K)over-bar(0) K+ and B-0 -> K-0 (K)over-bar(0)
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BaBar Collaboration (Including:
). (2006) Observation of B+->(K)over-bar(0) K+ and B-0 -> K-0 (K)over-bar(0). PHYSICAL REVIEW LETTERS, 97 (17). -. doi:10.1103/PhysRevLett.97.171805 ISSN 0031-9007.Research output not available from this repository.
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.97.171805
Abstract
We report observations of the b -> d penguin-dominated decays B+->(K) over bar K-0(+) and B-0 -> K-0(K) over bar (0) in 316 fb(-1) of e(+)e(-) collision data collected with the BABAR detector. We measure the branching fractions B(B+->(K) over bar K-0(+))=(1.61 +/- 0.44 +/- 0.09)x10(-6) and B(B-0 -> K-0(K) over bar (0))=(1.08 +/- 0.28 +/- 0.11)x10(-6) and the CP-violating charge asymmetry A(CP)((K) over bar K-0(+))=0.10 +/- 0.26 +/- 0.03. Using a vertexing technique previously employed in several analyses of all-neutral final states containing kaons, we report the first measurement of time-dependent CP-violating asymmetries in B-0 ->(KSKS0)-K-0, obtaining S=-1.28(-0.73-0.16)(+0.80+0.11) and C=-0.40 +/- 0.41 +/- 0.06. We also report improved measurements of the branching fraction B(B+-> K-0 pi(+))=(23.9 +/- 1.1 +/- 1.0)x10(-6) and CP-violating charge asymmetry A(CP)(K-0 pi(+))=-0.029 +/- 0.039 +/- 0.010.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Journal or Publication Title: | PHYSICAL REVIEW LETTERS | ||||
Publisher: | AMERICAN PHYSICAL SOC | ||||
ISSN: | 0031-9007 | ||||
Official Date: | 27 October 2006 | ||||
Dates: |
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Volume: | 97 | ||||
Number: | 17 | ||||
Number of Pages: | 7 | ||||
Page Range: | - | ||||
DOI: | 10.1103/PhysRevLett.97.171805 | ||||
Publication Status: | Published |
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