Measurement of Time-Dependent CP Asymmetries and the CP-Odd Fraction in the Decay B0 --> D*+D*-

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dc.creatorThe BABAR Collaboration
dc.creatorAubert, B.
dc.date2003-06-25
dc.date.accessioned2026-07-07T12:01:59Z
dc.date.available2026-07-07T12:01:59Z
dc.descriptionWe present a measurement of time-dependent CP asymmetries and an updated determination of the CP-odd fraction in the decay B0 --> D*+D*- using a data sample of 88 x 10^6 BBbar pairs collected by the BABAR detector at the PEP-II B Factory at SLAC. We determine the CP-odd fraction to be 0.063 +/- 0.055(stat) +/- 0.009(syst). The time-dependent CP asymmetry parameters $Im(λ_+)$ and $|λ_+|$ are determined to be 0.05 +/- 0.29(stat) +/- 0.10(syst) and 0.75 +/- 0.19(stat) +/- 0.02(syst), respectively. The Standard Model predicts these parameters to be -sin2beta and 1, respectively, in the absence of penguin diagram contributions.
dc.description7 pages, 2 postscript figues, submitted to PRL
dc.identifierhttps://arxiv.org/abs/hep-ex/0306052
dc.identifierhttp://arxiv.org/abs/hep-ex/0306052
dc.identifierPhys.Rev.Lett.91:131801,2003
dc.identifierdoi:10.1103/PhysRevLett.91.131801
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/207287
dc.subjectHigh Energy Physics - Experiment
dc.titleMeasurement of Time-Dependent CP Asymmetries and the CP-Odd Fraction in the Decay B0 --> D*+D*-
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