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Measurement of the branching fraction and time-dependent CP asymmetry in the decay B-0 ->(D*+D*-KS0)
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BABAR Collaboration (Including:
). (2006) Measurement of the branching fraction and time-dependent CP asymmetry in the decay B-0 ->(D*+D*-KS0). PHYSICAL REVIEW D, 74 (9). -. ISSN 1550-7998 Full text not available from this repository.
Official URL: http://dx.doi.org/10.1103/PhysRevD.74.091101
Abstract
We study the decay B-0 ->(D*+D*-KS0) using (230 +/- 2)x10(6)B (B) over bar pairs collected by the BABAR detector at the PEP-II B factory. We measure a branching fraction B(B-0 ->(D*+D*-KS0))=(4.4 +/- 0.4 +/- 0.7)x10(-3) and find evidence for the decay B-0 -> D*-Ds1+(2536) with a significance of 4.6 sigma. A time-dependent CP asymmetry analysis is also performed to study the possible resonant contributions to B-0 ->(D*+D*-KS0) and the sign of cos2 beta. Our measurement indicates that there is a sizable resonant contribution to the decay B-0 ->(D*+D*-KS0) from an unknown D-s1(+) state with large width, and that cos2 beta is positive at the 94% confidence level under certain theoretical assumptions.
| Item Type: | Journal Article |
|---|---|
| Subjects: | Q Science > QB Astronomy Q Science > QC Physics |
| Journal or Publication Title: | PHYSICAL REVIEW D |
| Publisher: | AMERICAN PHYSICAL SOC |
| ISSN: | 1550-7998 |
| Date: | November 2006 |
| Volume: | 74 |
| Number: | 9 |
| Number of Pages: | 8 |
| Page Range: | - |
| Identification Number: | 10.1103/PhysRevD.74.091101 |
| Publication Status: | Published |
| URI: | http://wrap.warwick.ac.uk/id/eprint/32727 |
Data sourced from Thomson Reuters' Web of Knowledge
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