We report the observation of charmless hadronic decays of charged B mesons to the final state K+K-π+. Using a data sample of 347.5fb-1 collected at the Υ(4S) resonance with the BABAR detector, we observe 429±43 signal events with a significance of 9.6σ. We measure the inclusive branching fraction B(B+→K+K-π+)=[5.0±0.5(stat)±0.5(syst)]×10- 6. Inspection of the Dalitz plot of signal candidates shows a broad structure peaking near 1.5GeV/c2 in the K+K- invariant mass distribution. We find the direct CP asymmetry to be consistent with zero.

Aubert, B., Bona, M., Boutigny, D., Karyotakis, Y., Lees, J., Poireau, V., et al. (2007). Observation of the decay B+→K+K-π+. PHYSICAL REVIEW LETTERS, 99(22) [10.1103/PhysRevLett.99.221801].

Observation of the decay B+→K+K-π+

CARPINELLI, Massimo;
2007

Abstract

We report the observation of charmless hadronic decays of charged B mesons to the final state K+K-π+. Using a data sample of 347.5fb-1 collected at the Υ(4S) resonance with the BABAR detector, we observe 429±43 signal events with a significance of 9.6σ. We measure the inclusive branching fraction B(B+→K+K-π+)=[5.0±0.5(stat)±0.5(syst)]×10- 6. Inspection of the Dalitz plot of signal candidates shows a broad structure peaking near 1.5GeV/c2 in the K+K- invariant mass distribution. We find the direct CP asymmetry to be consistent with zero.
Articolo in rivista - Articolo scientifico
Boron; Resonance; Signal analysis; Branching fraction; Charmless hadronic decays; Dalitz plot; Mesons; Charged particles;
English
B. Aubert et al. (BABAR Collaboration)
Aubert, B., Bona, M., Boutigny, D., Karyotakis, Y., Lees, J., Poireau, V., et al. (2007). Observation of the decay B+→K+K-π+. PHYSICAL REVIEW LETTERS, 99(22) [10.1103/PhysRevLett.99.221801].
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