2008

Measurement of D0-D0bar mixing from a time-dependent amplitude analysis of D0 -> K+ pi- pi0 decays

The BABAR Collaboration, Aubert, B

Understand

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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Similar

  • B. Aubert et al

    2002

    Cited alongside, same era.

  • L. Wolfenstein, Phys. Lett. B 164

    2004

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  • W. D. Hulsbergen, Nucl. Instrum. Meth. A 552

    Original

    2005

    Cited alongside, same era.

  • The use of charge-conjugate modes is implied unless otherwise noted

    Cited in the paper.

Then

  • B. Aubert et al

    2006

    Later among the works it cites.

  • Particle Data Group, W.-M. Yao et al

    2006

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  • B. Aubert et al

    2007

    Later among the works it cites.

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