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Search for D-0-(D-0)over bar mixing using doubly flavor tagged semileptonic decay modes
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(2007) Search for D-0-(D-0)over bar mixing using doubly flavor tagged semileptonic decay modes. Physical Review D, Vol.76 (No.1). Article: 014018. doi:10.1103/PhysRevD.76.014018 ISSN 1550-7998.
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Official URL: http://dx.doi.org/10.1103/PhysRevD.76.014018
Abstract
We have searched for D-0-(D) over bar (0) mixing in D*(+)->pi D-+(0) decays with D-0 -> K-(*())e nu in a sample of e(+)e(-)-> c (c) over bar events produced near 10.58 GeV. The charge of the slow pion from charged D* decay tags the charm flavor at production, and it is required to be consistent with the flavor of a fully reconstructed second charm decay in the same event. We observe 3 mixed candidates compared to 2.85 background events expected from simulation. We ascribe a 50% systematic uncertainty to this expected background rate. We find a central value for the mixing rate of 0.4x10(-4). Using a frequentist method, we set corresponding 68% and 90% confidence intervals at (-5.6,7.4)x10(-4) and (-13,12)x10(-4), respectively.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QB Astronomy Q Science > QC Physics |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Journal or Publication Title: | Physical Review D | ||||
Publisher: | American Physical Society | ||||
ISSN: | 1550-7998 | ||||
Official Date: | July 2007 | ||||
Dates: |
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Volume: | Vol.76 | ||||
Number: | No.1 | ||||
Number of Pages: | 13 | ||||
Page Range: | Article: 014018 | ||||
DOI: | 10.1103/PhysRevD.76.014018 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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