We present evidence of D(0)-D(0) mixing using a time-dependent amplitude analysis of the decay D(0)-> K(+)pi(-)pi(0) in a data sample of 384 fb(-1) collected with the BABAR detector at the PEP-II e(+)e(-) collider at the Stanford Linear Accelerator Center. Assuming CP conservation, we measure the mixing parameters x(K pi pi)(0')=[2.61(-0.68)(+0.57)(stat)+/- 0.39(syst)]%, y(K pi pi)(0')=[-0.06(-0.64)(+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.
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Titolo: | Measurement of D(0)-D(0) Mixing from a Time-Dependent Amplitude Analysis of D(0)-> K(+)pi(-)pi(0) Decays RID C-5223-2009 |
Anno del prodotto: | 2009 |
Digital Object Identifier (DOI): | 10.1103/PhysRevLett.103.211801 |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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