Measurement of the branching fraction and CP content for the decay B0-->D(*+)D(*-).

Journal article

We report a measurement of the branching fraction of the decay B0-->D(*+)D(*-) and of the CP-odd component of its final state using the BABAR detector. With data corresponding to an integrated luminosity of 20.4 fb (-1) collected at the Upsilon(4S) resonance during 1999-2000, we have reconstructed 38 candidate signal events in the mode B0-->D(*+)D(*-) with an estimated background of 6.2+/-0.5 events. From these events, we determine the branching fraction to be B(B0-->D(*+)D(*-))=[8.3+/-1.6(stat)+/-1.2(syst)]x10(-4). The measured CP-odd fraction of the final state is 0.22+/-0.18(stat)+/-0.03(syst).

Authors: Aubert, B; Boutigny, D; Gaillard, J; Hicheur, A; Karyotakis, Y

• Publication status: Published
• Journal: Physical Review Letters
• Volume: 89
• Issue: 6
• Pages: 061801
• Publication date: 2002-08-01
• DOI: 10.1103/physrevlett.89.061801
• EISSN: 1079-7114
• ISSN: 0031-9007
• Language: English
• Keywords: BABAR