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Evidence for B+→K¯*0K*+

Aubert, B. et al. (2009) Evidence for B+→K¯*0K*+. Physical Review D, 79 (5). 051102. ISSN 1550-7998

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We present measurements of the branching fraction and fraction of longitudinal polarization for the decay B+→K̅ *0K*+ with a sample of (467±5)×106 BB̅ 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 B(B+→K̅ *0K*+)=(1.2±0.5±0.1)×10-6 with a significance of 3.7 standard deviations including systematic uncertainties. We measure the fraction of longitudinal polarization fL=0.75-0.26+0.16±0.03. The first error quoted is statistical and the second is systematic.

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Applied Sciences
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Depositing User: Sharon Beastall
Date Deposited: 05 Jan 2012 11:48
Last Modified: 28 Aug 2021 11:13


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