Saigo, M;
Abe, K;
Abe, K;
Aihara, H;
Akatsu, M;
Asano, Y;
Aulchenko, V;
... Belle Collaboration; + view all
(2005)
Study of the suppressed decays B-->[K+pi(-)](D)K- and B-->[K+pi(-)](D)pi(-) - art. no. 09160.
PHYS REV LETT
, 94
(9)
, Article 091601. 10.1103/PhysRevLett.94.091601.
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Abstract
We report a study of the suppressed decays B- -> [K(+)pi(-)](D)K- and B- -> [K+ pi(-)](D)pi(-), where [K+ pi(-)](D) indicates that the K(+)pi(-) pair originates from a neutral D meson. These decay modes are sensitive to the unitarity triangle angle phi(3). We use a data sample containing 275x10(6) B (B) over bar pairs recorded at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric e(+)e(-) storage ring. The signal for B- -> [K+ pi(-)](D)K- is not statistically significant, and we set a limit r(B) < 0.27 at 90% confidence level, where r(B) is the magnitude of the ratio of amplitudes vertical bar A(B- -> (D) over bar K-0(-))/A(B- -> (DK-)-K-0)vertical bar. We observe a signal with 6.4 sigma statistical significance in the related mode, B- -> [K(+)pi(-)](D)pi(-).
| Type: | Article |
|---|---|
| Title: | Study of the suppressed decays B-->[K+pi(-)](D)K- and B-->[K+pi(-)](D)pi(-) - art. no. 09160 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.94.091601 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.94.091601 |
| Language: | English |
| Additional information: | © 2005 The American Physical Society |
| Keywords: | CP-VIOLATION |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1308451 |
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