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We present evidence of $D^0$-$\bar{D^0}$ mixing using a time-dependent amplitude analysis of the decay D0->K+pi-pi0 in a data sample of 384 fb^-1 collected with the BaBar detector at the PEP-II e+e- collider at SLAC.
- Assuming CP conservation, we measure the mixing parameters x'_{Kpipi0} = [2.61^{+0.57}_{-0.68} (stat.) +- 0.39 (syst.)]%, y'_{Kpipi0} = [-0.06 ^{+0.55}_{-0.64} (stat.) +- 0.34 (syst.)]%.
- The confidence level for the data to be consistent with the no-mixing hypothesis is 0.1%, including systematic uncertainties.
- This result is inconsistent with the no-mixing hypothesis with a significance of 3.2 standard deviations.
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The use of charge-conjugate modes is implied unless otherwise noted
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