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Search for CP violation and a measurement of the relative branching fraction in D+ -> K-K+ pi(+) decays
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BABAR Collaboration (Including: UNSPECIFIED). (2005) Search for CP violation and a measurement of the relative branching fraction in D+ -> K-K+ pi(+) decays. PHYSICAL REVIEW D, 71 (9). -. doi:10.1103/PhysRevD.71.091101
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Official URL: http://dx.doi.org/10.1103/PhysRevD.71.091101
Abstract
We report on a search for the CP asymmetry in the singly Cabibbo-suppressed decays D+-> K(-)K(+)pi(+) and in the resonant decays D+->phi pi(+) and D+->(K) over bar K-*0(+) based on a data sample of 79.9 fb(-1) recorded by the BABAR detector. We use the Cabibbo-favored D-s(+)-> K(-)K(+)pi(+) branching fraction as normalization in the measurements to reduce systematic uncertainties. The CP asymmetries obtained are A(CP)(K-K+ pi(+/-)) = (1.4 +/- 1.0(stat) +/- 0.8(syst)) x 10(-2), A(CP)(phi pi(+/-)) = (0.2 +/- 1.5(stat) +/- 0.6(syst)) x 10(-2), and A(CP)((K) over bar K-*0(+/-))=(0.9 +/- 1.7(stat) +/- 0.7(syst)) x 10(-2). The relative branching fraction Gamma(D+-> K(-)K(+)pi(+))/Gamma(D+ -> K(-)pi(+)pi(+)) is also measured and is found to be (10.7 +/- 0.1(stat) +/- 0.2(syst)) x 10(-2).
| 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: | 1550-7998 | ||||
| Official Date: | May 2005 | ||||
| Dates: |
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| Volume: | 71 | ||||
| Number: | 9 | ||||
| Number of Pages: | 8 | ||||
| Page Range: | - | ||||
| DOI: | 10.1103/PhysRevD.71.091101 | ||||
| Publication Status: | Published |
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