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Improved 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: Harrison, P. F., Ilić, Jelena, Latham, Thomas and Mohanty, G. B.). (2007) Improved measurement of time-dependent CP asymmetries and the CP-odd fraction in the decay B-0 -> D*D+*(-). Physical Review D (Particles, Fields, Gravitation and Cosmology), Vol.76 (No.11). doi:10.1103/PhysRevD.76.111102 ISSN 1550-7998.
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Official URL: http://dx.doi.org/10.1103/PhysRevD.76.111102
Abstract
We present an updated measurement of the CP-odd fraction and the time-dependent CP asymmetries in the decay B-0 -> D*D+*(-) using (383 +/- 4)x10(6)B (B) over bar pairs collected with the BABAR detector. We determine the CP-odd fraction to be 0.143 +/- 0.034(stat)+/- 0.008(syst). The time-dependent CP asymmetry parameters are determined to be C+=-0.05 +/- 0.14(stat)+/- 0.02(syst) and S+=-0.72 +/- 0.19(stat)+/- 0.05(syst). The nonzero value of the measured S+ indicates the evidence of CP violation at the 3.7 sigma confidence level.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QB Astronomy Q Science > QC Physics |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Journal or Publication Title: | Physical Review D (Particles, Fields, Gravitation and Cosmology) | ||||
Publisher: | American Physical Society | ||||
ISSN: | 1550-7998 | ||||
Official Date: | December 2007 | ||||
Dates: |
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Volume: | Vol.76 | ||||
Number: | No.11 | ||||
Number of Pages: | 8 | ||||
DOI: | 10.1103/PhysRevD.76.111102 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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