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Measurement of the ratio B(B-->(DK-)-K-*0)/B(B--> D-*0 pi(-)) and of the CP asymmetry of B-->(DCP+K)-K-*0- decays
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BaBar Collaboration (Including: UNSPECIFIED). (2005) Measurement of the ratio B(B-->(DK-)-K-*0)/B(B--> D-*0 pi(-)) and of the CP asymmetry of B-->(DCP+K)-K-*0- decays. PHYSICAL REVIEW D, 71 (3). -. doi:10.1103/PhysRevD.71.031102 ISSN 0556-2821.
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Official URL: http://dx.doi.org/10.1103/PhysRevD.71.031102
Abstract
We study the decays B--->D(*0)pi(-) and B--->(DK-)-K-*0, where the D-*0 decays into D(0)pi(0), with the D-0 reconstructed in the CP-even (CP+) eigenstates K-K+ and pi(-)pi(+) and in the (non-CP) channels K(-)pi(+), K(-)pi(+)pi(+)pi(-), and K(-)pi(+)pi(0). Using a sample of about 123x10(6) B (B) over bar pairs, we measure the ratios of decay rates R-non-CP(*)=B(B--->(Dnon-CPK-)-K-*0)B(B--->D(non-CP)(*0)pi(-)=0.0813+/-0.0040(stat)(-0.0031)(+0.0042)(syst), and provide the first measurements of R(CP+)(*)equivalent toB(B--->(DCP+K-)-K-*0)B(B--->D(CP+)(*0)pi(-))=0.086+/-0.021(stat)+/-0.007(syst), and of the CP asymmetry A(CP+)(*)=B(B--->(DCP+K-)-K-*0)-B(B+-->(DCP+K+)-K-*0)B(B--->(DCP+K-)-K-*0)+B(B+-->(DCP+K+)-K-*0)=-0.10+/-0.23(stat)(-0.04)(+0.03)(syst).
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QB Astronomy Q Science > QC Physics |
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| Journal or Publication Title: | PHYSICAL REVIEW D | ||||
| Publisher: | AMERICAN PHYSICAL SOC | ||||
| ISSN: | 0556-2821 | ||||
| Official Date: | February 2005 | ||||
| Dates: |
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| Volume: | 71 | ||||
| Number: | 3 | ||||
| Number of Pages: | 8 | ||||
| Page Range: | - | ||||
| DOI: | 10.1103/PhysRevD.71.031102 | ||||
| Publication Status: | Published |
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