Search for CP violation in the decay B0->D*+-D-+

Details Search for CP violation in the decay B0->D*+-D-+ Search for CP violation in the decay B0->D*+-D-+

2004-08-13

arxiv.org/abs/hep-ex/0408051v3

Phys.Rev.Lett.93:201802,2004

Physics

High Energy Physics

High Energy Physics - Experiment

4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.93.201802

We report a search for CP-violating asymmetry in B0 -> D*+- D-+ decays. The analysis employs two methods of B0 reconstruction: full and partial. In the full reconstruction method all daughter particles of the B0 are required to be detected; the partial reconstruction technique requires a fully reconstructed D- and only a slow pion from the D*+ -> D0 pi_slow+ decay. From a fit to the distribution of the time interval corresponding to the distance between two B meson decay points we calculate the CP-violating parameters and find the significance of nonzero CP asymmetry to be 2.7 standard deviations.

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