Abe, K;
Adachi, I;
Aihara, H;
Asano, Y;
Aulchenko, V;
Aushev, T;
Bakich, AM;
... Belle Collaboration; + view all
(2005)
Measurements of B decays to two kaons.
PHYS REV LETT
, 95
(23)
, Article 231802. 10.1103/PhysRevLett.95.231802.
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Abstract
We report measurements of B meson decays to two kaons using 253 fb(-1) of data collected with the Belle detector at the KEKB energy-asymmetric e(+)e(-) collider. We find evidence for signals in B+->(K) over bar K-0(+) and B-0-> K-0(K) over bar (0) with significances of 3.0 sigma and 3.5 sigma, respectively. (Charge-conjugate modes are included.) The corresponding branching fractions are measured to be B(B+->(K) over bar K-0(+))=(1.0 +/- 0.4 +/- 0.1)x10(-6) and B(B-0-> K-0(K) over bar (0))=(0.8 +/- 0.3 +/- 0.1)x10(-6). These decay modes are examples of hadronic b -> d transitions. No signal is observed in the decay B-0-> K+K-, and we set an upper limit of 3.7x10(-7) at 90% confidence level.
| Type: | Article |
|---|---|
| Title: | Measurements of B decays to two kaons |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.95.231802 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.95.231802 |
| Language: | English |
| Additional information: | © 2005 The American Physical Society |
| Keywords: | INDUCED CP VIOLATION, BELLE |
| 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/1308493 |
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