Study of the Decays B0 --> D(*)+D(*)-

Details Study of the Decays B0 --> D(*)+D(*)- Study of the Decays B0 --> D(*)+D(*)-

2000-02-29

arxiv.org/abs/hep-ex/0002065v1

Phys.Rev.D62:032005,2000

Physics

High Energy Physics

High Energy Physics - Experiment

21 pages, 5 figures, submitted to Phys. Rev. D

Scientific paper

10.1103/PhysRevD.62.032005

The decays B0 --> D*+D*-, B0 --> D*+D- and B0 --> D+D- are studied in 9.7 million Y(4S) --> BBbar decays accumulated with the CLEO detector. We determine Br(B0 --> D*+D*-) = (9.9+4.2-3.3+-1.2)e-4 and limit Br(B0 --> D*+D-) < 6.3e-4 and Br(B0 --> D+D-) < 9.4e-4 at 90% confidence level (CL). We also perform the first angular analysis of the B0 --> D*+D*- decay and determine that the CP-even fraction of the final state is greater than 0.11 at 90% CL. Future measurements of the time dependence of these decays may be useful for the investigation of CP violation in neutral B meson decays.

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