Measurement of CP-Violating Asymmetries in B0->D(*)+D-

Details Measurement of CP-Violating Asymmetries in B0->D(*)+D- Measurement of CP-Violating Asymmetries in B0->D(*)+D-

2007-05-08

arxiv.org/abs/0705.1190v2

Phys.Rev.Lett.99:071801,2007

Physics

High Energy Physics

High Energy Physics - Experiment

Minor changes of the text and reference for the publication

Scientific paper

10.1103/PhysRevLett.99.071801

We present updated measurements of \CP-violating asymmetries in the decays $\Bz\to\Dstarpm\Dmp$ and $\Bz\to\Dp\Dm$ using $(383\pm 4) \times 10^{6} \BB$ pairs collected by the \babar detector at the PEP-II $B$ factory. We determine the time-integrated \CP asymmetry ${\mathcal{A}}_{\Dstarpm\Dmp}=0.12\pm 0.06\pm 0.02$, and the time-dependent asymmetry parameters to be $C_{\Dstarp\Dm} =0.18\pm 0.15\pm 0.04$, $S_{\Dstarp\Dm}=-0.79\pm 0.21\pm 0.06$, $C_{\Dstarm\Dp} =0.23\pm 0.15\pm 0.04$, $S_{\Dstarm\Dp} =-0.44\pm 0.22\pm 0.06$, $C_{\Dp\Dm} =0.11\pm 0.22\pm 0.07$, and $S_{\Dp\Dm} =-0.54\pm 0.34\pm 0.06$, where the first uncertainty is statistical and the second is systematic.

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