Abe, K;
Abe, K;
Abe, N;
Abe, R;
Abe, T;
Ahn, BS;
Aihara, H;
... Belle Collaboration; + view all
(2003)
Studies of the decay B-+/--> DCPK +/-.
PHYS REV LETT
, 90
(13)
, Article 131803. 10.1103/PhysRevLett.90.131803.
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Abstract
We report studies of the Cabibbo-suppressed decay B+/- --> DCPK+/-, where D-CP denotes CP eigenstates of the D-0 - (D) over bar (0) system. The analysis is based on a 29.1 fb(-1) sample collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric e(+)e(-) storage ring. We measure ratios of branching fractions, relative to Cabibbo-favored B+/--->D(CP)pi+/-, of B>(B- --> D1K-)/B(B- --> D(1)pi(-)) = 0.125 +/-0.036 +/- 0.010 and B(B- --> D2K-)/B(B- --> D(2)pi(-)) = 0.119 +/- 0.028 +/- 0.006; the index 1 (2) denotes the CP = +1 (-1) eigenstate. We also extract the partial rate asymmetries for B+/- --> DCPK+/-, finding A(1) = 0.29 +/- 0.26 +/- 0.05 and A(2) = -0.22 +/- 0.24 +/- 0.04.
| Type: | Article |
|---|---|
| Title: | Studies of the decay B-+/--> DCPK +/- |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.90.131803 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.90.131803 |
| Language: | English |
| Additional information: | © 2003 The American Physical Society |
| Keywords: | CP VIOLATION, BELLE, MODES |
| 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.ucl.ac.uk/id/eprint/1308403 |
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