Measurement of D(0)-D̅ (0) Mixing from a Time-Dependent Amplitude Analysis of D(0) -->K(+)pi(-)pi(0) Decays
Author(s)
Cowan, Ray Franklin; Dujmic, Denis; Fisher, Peter H.; Koeneke, Karsten; Sciolla, Gabriella; Spitznagel, M.; Taylor, Frank E.; Yamamoto, R. K.; Zhao, M.; ... Show more Show less
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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.
Date issued
2009-11Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
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
ISSN
0031-9007