Evidence for B[superscript +]-->K[over-bar][superscript *0]K[superscript *+]
Author(s)
Dujmic, Denis; Henderson, Shawn Wesley; Sciolla, Gabriella; Yamamoto, R. K.; Zhao, M.; Fisher, Peter H; Cowan, Ray F; Spitznagel, Michael A; Taylor, Frank E; ... Show more Show less
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Alternative title
Evidence for B+→K̅ *0K*+
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Show full item recordAbstract
We present measurements of the branching fraction and fraction of longitudinal polarization for the decay B[superscript +]-->K[over-bar][superscript *0]K[superscript *+] with a sample of (467±5)×10[superscript 6] BB[over-bar] pairs collected with the BABAR detector at the PEP-II asymmetric-energy e+e- collider at the SLAC National Accelerator Laboratory. We obtain the branching fraction Beta(B[superscript +]-->K[over-bar][superscript *0]K[superscript *+])=(1.2±0.5±0.1)×10[superscript -6] with a significance of 3.7 standard deviations including systematic uncertainties. We measure the fraction of longitudinal polarization fL=0.75[subscript -0.26][superscript +0.16]±0.03. The first error quoted is statistical and the second is systematic.
Date issued
2009-03Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
Physical Review D
Publisher
American Physical Society
Citation
BABAR Collaboration et al. “Evidence for B+-->K-bar*K*+.” Physical Review D 79.5 (2009): 051102. © 2009 The American Physical Society.
Version: Final published version
ISSN
1089-4918