Aubert, B;
Barate, R;
Boutigny, D;
Couderc, F;
Gaillard, JM;
Hicheur, A;
Karyotakis, Y;
... BaBar Collaboration; + view all
(2004)
Branching fractions and CP asymmetries in B-0 ->(K+K-KS0) and B+->(K+KSKS0)-K-0.
PHYS REV LETT
, 93
(18)
, Article 181805. 10.1103/PhysRevLett.93.181805.
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Abstract
We measure the branching fractions and CP asymmetries in the decays B-0 --> (K+K-KS0) and B+ --> (K+KSKS0)-K-0 using a sample of approximately 122 x 10(6) B(B) over bar pairs collected by the BABAR detector. From a time-dependent analysis of the (K+K-KS0) sample that excludes phiK(S)(0), the values of the CP-violation parameters are S = -0.56+/-0.25+/-0.04 and C = -0.10+/-0.19+/-0.10, where the first uncertainty is statistical and the second is systematic. We confirm that the final state is nearly purely CP even and extract the standard model parameter sin2beta = 0.57+/-0.26+/-0.04(-0)(+0.17) where the last error is due to uncertainty on the CP content. We present the first measurement of the CP-violating charge asymmetry A(CP)(B+ --> (K+KSKS0)-K-0) = -0.04+/-0.11+/-0.02. The branching fractions are B(B-0 --> (K+K-K0)) = (23.8+/-2.0+/-1.6) x 10(-6) and B(B+ --> (K+KSKS0)-K-0) = (10.7+/-1.2+/-1.0) x 10(-6).
| Type: | Article |
|---|---|
| Title: | Branching fractions and CP asymmetries in B-0 ->(K+K-KS0) and B+->(K+KSKS0)-K-0 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.93.181805 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.93.181805 |
| Language: | English |
| Additional information: | The American Physical Society |
| Keywords: | B-DECAYS, VIOLATION |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences 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/1303683 |
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