Observation of the Decay B+ --> K+K-pi+

Details Observation of the Decay B+ --> K+K-pi+ Observation of the Decay B+ --> K+K-pi+

2007-08-02

arxiv.org/abs/0708.0376v3

Phys.Rev.Lett.99:221801,2007

Physics

High Energy Physics

High Energy Physics - Experiment

7 pages, 5 postscript figures, published in PRL

Scientific paper

10.1103/PhysRevLett.99.221801

We report the observation of charmless hadronic decays of charged B mesons to the final state K+K-pi+. Using a data sample of 347.5 fb^-1 collected at the Y(4S) resonance with the BABAR detector, we observe 429+/-43 signal events with a significance of 9.6 sigma. We measure the inclusive branching fraction BF(B+ --> K+K-pi+) = [5.0+/-0.5(stat)+/-0.5(syst)]x10^-6. Inspection of the Dalitz plot of signal candidates shows a broad structure peaking near 1.5 GeV/c^2 in the K+K- invariant mass distribution. We find the direct CP asymmetry to be consistent with zero.

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