BABAR Collaboration (Including: Back, J. J., Harrison, P. F., Latham, Thomas, Mohanty, G. B. and Pappagallo, M.). (2007) Observation of CP violation in B ->eta/K-0 decays. Physical Review Letters, Vol.98 (No.3). doi:10.1103/PhysRevLett.98.031801 ISSN 0031-9007.
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Abstract
We present measurements of the time-dependent CP-violation parameters S and C in B-0 -> eta K-'(0) decays. The data sample corresponds to 384 x 10(6) B (B) over bar pairs produced by e(+)e(-) annihilation at the Upsilon(4S). The results are S = 0.58 +/- 0.10 +/- 0.03 and C = -0.16 +/- 0.07 +/- 0.03. We observe mixing-induced CP violation with a significance of 5.5 standard deviations in this b -> s penguin dominated mode.
| Item Type: | Journal Article |
|---|---|
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics |
| Journal or Publication Title: | Physical Review Letters |
| Publisher: | American Physical Society |
| ISSN: | 0031-9007 |
| Official Date: | 19 January 2007 |
| Dates: | Date Event 19 January 2007 Published |
| Volume: | Vol.98 |
| Number: | No.3 |
| Number of Pages: | 7 |
| DOI: | 10.1103/PhysRevLett.98.031801 |
| Status: | Peer Reviewed |
| Publication Status: | Published |
| Access rights to Published version: | Restricted or Subscription Access |
| URI: | https://wrap.warwick.ac.uk/32472/ |
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