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Evidence for direct CP violation in the measurement of the Cabbibo-Kobayashi-Maskawa angle gamma with B--/+ -> D-(*K-)(()*()-/+) decays
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Collaboration, B (Including:
). (2010) Evidence for direct CP violation in the measurement of the Cabbibo-Kobayashi-Maskawa angle gamma with B--/+ -> D-(*K-)(()*()-/+) decays. Physical Review Letters, Vol.105 (No.12). article no. 121801 . ISSN 0031-9007 Full text not available from this repository.
Official URL: http://dx.doi.org/10.1103/PhysRevLett.105.121801
Abstract
We report the measurement of the Cabibbo-Kobayashi-Maskawa CP-violating angle gamma through a Dalitz plot analysis of neutral D-meson decays to K-S(0)pi(+) pi(-) and K-S(0) K+ K- produced in the processes B--/+ -> DK -/+, B--/+ -> D* K--/+ with D* -> D pi(0), D gamma and B -/+ DK*-/+ with K*(-/+) -> K-S(0)pi(-/+), using 468 million B (B) over bar pairs collected by the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) collider at SLAC. We measure gamma = (68 +/- 14 +/- 4 +/- 3)degrees (modulo 180 degrees), where the first error is statistical, the second is the experimental systematic uncertainty, and the third reflects the uncertainty in the description of the neutral D decay amplitudes. This result is inconsistent with gamma = 0 ( no direct CP violation) with a significance of 3.5 standard deviations.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||
| Divisions: | Faculty of Science > Physics | ||||
| Journal or Publication Title: | Physical Review Letters | ||||
| Publisher: | American Physical Society | ||||
| ISSN: | 0031-9007 | ||||
| Official Date: | 16 September 2010 | ||||
| Dates: |
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| Volume: | Vol.105 | ||||
| Number: | No.12 | ||||
| Number of Pages: | 7 | ||||
| Page Range: | article no. 121801 | ||||
| Identification Number: | 10.1103/PhysRevLett.105.121801 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| URI: | http://wrap.warwick.ac.uk/id/eprint/5127 |
Data sourced from Thomson Reuters' Web of Knowledge
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