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Measurement of time-dependent CP-violating asymmetries and constraints on sin(2 beta+gamma) with partial reconstruction of B -> D-*+/-pi(+/-) decays
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UNSPECIFIED (2005) Measurement of time-dependent CP-violating asymmetries and constraints on sin(2 beta+gamma) with partial reconstruction of B -> D-*+/-pi(+/-) decays. PHYSICAL REVIEW D, 71 (11). -. doi:10.1103/PhysRevD.71.112003
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Official URL: http://dx.doi.org/10.1103/PhysRevD.71.112003
Abstract
We present a measurement of the time-dependent CP-violating asymmetries in decays of neutral B mesons to the final states D(*-/+)pi(+/-), using approximately 232x10(6) B (B) over bar events recorded by the BABAR experiment at the PEP-II e(+)e(-) storage ring. Events containing these decays are selected with a partial reconstruction technique, in which only the high-momentum pi(+/-) from the B decay and the low-momentum pi(-/+) from the D*-/+ decay are used. We measure the parameters related to 2 beta+gamma to be a(D*pi)=-0.034 +/- 0.014 +/- 0.009 and c(D*pi)(l)=-0.019 +/- 0.022 +/- 0.013. With some theoretical assumptions, we interpret our results in terms of the lower limits vertical bar sin(2 beta+gamma)vertical bar > 0.62(0.35) at 68% (90%) confidence level.
| 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: | June 2005 | ||||
| Dates: |
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| Volume: | 71 | ||||
| Number: | 11 | ||||
| Number of Pages: | 17 | ||||
| Page Range: | - | ||||
| DOI: | 10.1103/PhysRevD.71.112003 | ||||
| Publication Status: | Published |
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