# Observation of the Decay $B^+ \to K^+K^-\pi^+$

Abstract : 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.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00166306
Contributor : Dominique Girod <>
Submitted on : Friday, August 3, 2007 - 9:40:58 AM
Last modification on : Saturday, November 28, 2020 - 12:58:03 PM

### Citation

B. Aubert, M. Bona, D. Boutigny, Y. Karyotakis, J.P. Lees, et al.. Observation of the Decay $B^+ \to K^+K^-\pi^+$. Physical Review Letters, American Physical Society, 2007, 99, pp.221801. ⟨10.1103/PhysRevLett.99.221801⟩. ⟨in2p3-00166306⟩

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