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Measurement of time-dependent CP asymmetries and the CP-odd fraction in the decay B-0 -> D-* + D*-
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BABAR Collaboration (Including: UNSPECIFIED). (2005) Measurement of time-dependent CP asymmetries and the CP-odd fraction in the decay B-0 -> D-* + D*-. PHYSICAL REVIEW LETTERS, 95 (15). -. doi:10.1103/PhysRevLett.95.151804 ISSN 0031-9007.
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.95.151804
Abstract
We present an updated measurement of time-dependent CP asymmetries and the CP-odd fraction in the decay B-0 -> D*+D*- using 232x10(6)B (B) over bar pairs collected by the BABAR detector at the SLAC PEP-II B factory. We determine the CP-odd fraction to be 0.125 +/- 0.044(stat) +/- 0.007(syst). The time-dependent CP asymmetry parameters C+ and S+ are determined to be 0.06 +/- 0.17(stat)+/- 0.03(syst) and -0.75 +/- 0.25(stat) +/- 0.03(syst), respectively. The standard model predicts these parameters to be 0 and -sin2 beta, respectively, in the absence of penguin amplitude contributions.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Journal or Publication Title: | PHYSICAL REVIEW LETTERS | ||||
Publisher: | AMERICAN PHYSICAL SOC | ||||
ISSN: | 0031-9007 | ||||
Official Date: | 7 October 2005 | ||||
Dates: |
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Volume: | 95 | ||||
Number: | 15 | ||||
Number of Pages: | 7 | ||||
Page Range: | - | ||||
DOI: | 10.1103/PhysRevLett.95.151804 | ||||
Publication Status: | Published |
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