Aubert, B;
Barate, R;
Boutigny, D;
Couderc, F;
Gaillard, JM;
Hicheur, A;
Karyotakis, Y;
... BaBar Collaboration, .; + view all
(2004)
Measurements of branching fractions and CP-violating asymmetries in B meson decays to charmless two-body states containing a K-0.
PHYS REV LETT
, 92
(20)
, Article 201802. 10.1103/PhysRevLett.92.201802.
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Abstract
We present measurements of branching fractions and CP-violating asymmetries in decays of B mesons to two-body final states containing a K-0. The results are based on a data sample of approximately 88x10(6) Y(4S)-->B (B) over bar decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We measure B(B+-->K(0)pi(+))=(22.3+/-1.7+/-1.1)x10(-6), B(B-0-->K(0)pi(0))=(11.4+/-1.7+/-0.8)x10(-6), B(B+-->(K) over bar K-0(+))<2.5x10(-6), and B(B-0-->K-0(K) over bar (0))<1.8x10(-6), where the first uncertainty is statistical and the second is systematic, and the upper limits are at the 90% confidence level. In addition, the following CP-violating asymmetries have been measured: A(CP)(B+-->K(0)pi(+))=-0.05+/-0.08+/-0.01 and A(CP)(B-0-->K(0)pi(0))=0.03+/-0.36+/-0.11.
| Type: | Article |
|---|---|
| Title: | Measurements of branching fractions and CP-violating asymmetries in B meson decays to charmless two-body states containing a K-0 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.92.201802 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.92.201802 |
| Language: | English |
| Additional information: | The American Physical Society |
| Keywords: | QCD FACTORIZATION, PI-PI |
| 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/1303656 |
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