Measurement of D(0)-D̅ (0) Mixing from a Time-Dependent Amplitude Analysis of D(0) -->K(+)pi(-)pi(0) Decays
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Aubert-2009-Measurement of D0-D0 Mixing from a Time-Dependent Amplitude Analysis.pdf
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Author(s)
Cowan, Ray Franklin
Dujmic, Denis
Fisher, Peter H.
Koeneke, Karsten
Sciolla, Gabriella
Spitznagel, M.
Taylor, Frank E.
Yamamoto, R. K.
Zhao, M.
Date Issued
November 2009
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Aubert, B. et al. "Measurement of D(0)-D̅ (0) Mixing from a Time-Dependent Amplitude Analysis of D(0) -->K(+)pi(-)pi(0) Decays." Physical Review Letters 103.21 (2009): 211801. © 2009 The American Physical Society
Version
Final published version
Abstract
We present evidence of D[superscript 0]-D̅[superscript 0] mixing using a time-dependent amplitude analysis of the decay D0→K[superscript +]π[superscript -]π[superscript 0] in a data sample of 384 fb[superscript -1] collected with the BABAR detector at the PEP-II e[superscript +]e[superscript -] collider at the Stanford Linear Accelerator Center. Assuming CP conservation, we measure the mixing parameters x[subscript Kππ][superscript 0′]=[2.61[subscript -0.68] [superscript +0.57](stat)±0.39(syst)]%, y[subscript Kππ][superscript 0′]=[-0.06[subscript -0.64][superscript +0.55](stat)±0.34(syst)]%. This result is inconsistent with the no-mixing hypothesis with a significance of 3.2 standard deviations. We find no evidence of CP violation in mixing.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
http://dx.doi.org/10.1103/PhysRevLett.103.211801
