Measurements of B Decays to Two Kaons

Details Measurements of B Decays to Two Kaons Measurements of B Decays to Two Kaons

2005-06-30

arxiv.org/abs/hep-ex/0506080v3

Phys.Rev.Lett.95:231802,2005

Physics

High Energy Physics

High Energy Physics - Experiment

8 pages, 1 figure, submitted to the Lepton Photon 2005 conference in Uppsala, Sweden and to the HEP2005 Europhysics Conference

Scientific paper

10.1103/PhysRevLett.95.231802

We report measurements of B meson decays to two kaons using 250/fb of data collected with the Belle detector at the KEKB asymmetric energy e+ e- collider. We find evidence of signals in B+ -> K0(bar) K+ and B0 -> K0 K0(bar) with significances of 3.0 sigma and 3.5 sigma, respectively. The corresponding branching fractions are measured to be BF(B+ -> K0(bar) K+) = (1.0+-0.4+-0.1) x 10^-6 and Br(B0 -> K0 K0(bar)) = 0.8+-0.3+-0.1) x 10^-6. These decay modes are examples of hadronic b -> d transitions. No signal is observed in the decay B0 -> K+ K- and we set an upper limit of 3.7 x 10^-7 at 90% confidence level.

Affiliated with

Also associated with

No associations

Rating

Measurements of B Decays to Two Kaons does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Measurements of B Decays to Two Kaons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurements of B Decays to Two Kaons will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-234741