Study of B --> D*{sup +}D*{sup -} Decays with the BABAR Detector
Decays of the type B {yields} D(*){bar D}(*) can be used to provide a measurement of the parameter sin2{beta} of the Unitarity Triangle that is complementary to that derived from the mode B{sup 0} {yields} J/{psi}K{sub S}{sup 0}. Here we report a measurement of the branching fraction and a study of the CP parity content for the decay B{sup 0} {yields} D*{sup +}D*{sup -} with the BABAR detector. With data corresponding to an integrated luminosity of 20.7 fb{sup -1} collected at the {Upsilon}(4S) resonance during 1999-2000, we determine the branching fraction to be {Beta}(B{sup 0} {yields} D*{sup +}D*{sup -}) = (8.0 {+-} 1.6(stat ) {+-} 1.2(syst.)) x 10{sup -4}. The measured fraction of the component with odd CP parity is 0.22 {+-} 0.18(stat) {+-} 0.03(syst). Observation of a significant number of candidates in the decay modes B{sup 0} {yields} D*{sup +}D{sup -} and B{sup +} {yields} D*{sup +}D*{sup 0} is reported. All results presented in this note are preliminary.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (US)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 826710
- Report Number(s):
- SLAC-PUB-8982; TRN: US0404132
- Resource Relation:
- Other Information: PBD: 10 Feb 2004
- Country of Publication:
- United States
- Language:
- English
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