Evidence for B[superscript +]-->K[over-bar][superscript *0]K[superscript *+]
Name
Aubert-2009-Evidence for B+ -_ (.pdf
Size
304.33 KB
Format
Adobe PDF
Checksum (MD5)
5106078a4c8d89b2b4f15a60609ae5d1
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
Alternative Title
Evidence for B+→K̅ *0K*+
Date Issued
March 2009
Journal
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
Abstract
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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.79.051102
